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/* $OpenBSD: machdep.c,v 1.8 1997/08/12 21:51:30 mickey Exp $ */
/*
* Copyright (c) 1997 Michael Shalayeff
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by Michael Shalayeff.
* 4. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
*/
#include "libsa.h"
#include <machine/biosvar.h>
#include <machine/apmvar.h>
#include "debug.h"
struct apm_connect_info apminfo;
void
machdep()
{
#ifdef DEBUG
*(u_int16_t*)0xb8148 = 0x4730;
#endif
gateA20(1);
#ifdef DEBUG
*(u_int16_t*)0xb8148 = 0x4731;
#endif
debug_init();
#ifdef DEBUG
*(u_int16_t*)0xb8148 = 0x4732;
#endif
cninit(); /* call console init before doing any io */
#ifdef DEBUG
*(u_int16_t*)0xb8148 = 0x4733;
#endif
#ifndef _TEST
memprobe();
#endif
#ifdef DEBUG
*(u_int16_t*)0xb8148 = 0x4f34;
#endif
#ifdef BOOT_APM
printf("apm_init: ");
switch(apminfo.apm_detail = apm_init()) {
case APMINI_CANTFIND:
printf("not supported");
break;
case APMINI_NOT32BIT:
printf("no 32 bit interface");
break;
case APMINI_CONNECTERR:
printf("connect error");
break;
case APMINI_BADVER:
printf("bad version");
break;
default:
/* valid: detail, dx, bx */
apminfo.apm_code32_seg_base = (BIOS_regs.biosr_ax & 0xffff)<< 4;
apminfo.apm_code16_seg_base = (BIOS_regs.biosr_cx & 0xffff)<< 4;
apminfo.apm_data_seg_base = (BIOS_regs.biosr_dx & 0xffff)<< 4;
#if 0
apminfo.apm_code32_seg_len = BIOS_regs.biosr_si & 0xffff;
apminfo.apm_data_seg_len = BIOS_regs.biosr_di & 0xffff;
#else
apminfo.apm_code32_seg_len = 0x10000;
apminfo.apm_data_seg_len = 0x10000;
#endif
apminfo.apm_entrypt = BIOS_regs.biosr_bx;
#ifdef DEBUG
printf("%x text=%x/%x[%x] data=%x[%x] @ %x",
apminfo.apm_detail,
apminfo.apm_code32_seg_base,
apminfo.apm_code16_seg_base,
apminfo.apm_code32_seg_len,
apminfo.apm_data_seg_base,
apminfo.apm_data_seg_len,
apminfo.apm_entrypt);
#else
printf("APM detected");
#endif
}
putchar('\n');
#endif
}
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