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133 lines
3.5 KiB
C
133 lines
3.5 KiB
C
/* $NetBSD: sysinfo.c,v 1.9 2009/03/14 15:36:04 dsl Exp $ */
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/*-
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* Copyright (c) 1998 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by Leo Weppelman.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifdef TOSTOOLS
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#include <stdio.h>
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#include <sys/types.h>
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#else
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#include <lib/libsa/stand.h>
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#include <atari_stand.h>
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#include <libkern.h>
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#include <machine/cpu.h>
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#endif /* TOSTOOLS */
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#include "libtos.h"
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#include "tosdefs.h"
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#include "kparamb.h"
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/*
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* Extract memory and CPU/FPU info from system.
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*/
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void
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sys_info(osdsc_t *od)
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{
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long *jar;
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OSH *oshdr;
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od->cputype = 0;
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/*
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* Some GEMDOS versions use a different year-base in the RTC.
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*/
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oshdr = *ADDR_OSHEAD;
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oshdr = oshdr->os_beg;
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if ((oshdr->os_version > 0x0300) && (oshdr->os_version < 0x0306))
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od->cputype |= ATARI_CLKBROKEN;
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/*
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* Auto configure memory sizes when they are not pre-set.
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*/
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if (od->stmem_size <= 0)
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od->stmem_size = *ADDR_PHYSTOP;
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if (od->ttmem_size)
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od->ttmem_start = TTRAM_BASE;
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else {
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if (*ADDR_CHKRAMTOP == RAMTOP_MAGIC) {
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od->ttmem_size = *ADDR_RAMTOP;
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if (od->ttmem_size > TTRAM_BASE) {
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od->ttmem_size -= TTRAM_BASE;
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od->ttmem_start = TTRAM_BASE;
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}
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else od->ttmem_size = 0;
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}
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}
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/*
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* Scan cookiejar for CPU types, accellerator boards, etc.
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*/
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jar = *ADDR_P_COOKIE;
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if (jar != NULL) {
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do {
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if (jar[0] == 0x5f435055) { /* _CPU */
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switch (jar[1]) {
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case 0:
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od->cputype |= ATARI_68000;
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break;
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case 10:
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od->cputype |= ATARI_68010;
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break;
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case 20:
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od->cputype |= ATARI_68020;
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break;
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case 30:
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od->cputype |= ATARI_68030;
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break;
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case 40:
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od->cputype |= ATARI_68040;
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break;
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case 60:
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od->cputype |= ATARI_68060;
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break;
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default:
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/* This error is caught later on */
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break;
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}
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}
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if (jar[0] == 0x42504658) { /* BPFX */
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unsigned long *p;
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p = (unsigned long*)jar[1];
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od->ttmem_start = p[1];
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od->ttmem_size = p[2];
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}
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if (jar[0] == 0x5f435432) { /* _CT2 */
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/*
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* The CT2 board has a different physical base address!
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*/
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od->ttmem_start = CTRAM_BASE;
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}
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jar = &jar[2];
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} while (jar[-2]);
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}
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}
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