/* $OpenBSD: machdep.c,v 1.1 1997/07/18 00:37:15 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 <i386/stand/libsa/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); debug_init(); cons_probe(); /* call console init before any io */ #ifndef _TEST memprobe(); #endif #ifdef DEBUG *(u_int16_t*)0xb8148 = 0x4f31; #endif 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.br_ax & 0xffff) << 4; apminfo.apm_code16_seg_base = (BIOS_regs.br_cx & 0xffff) << 4; apminfo.apm_data_seg_base = (BIOS_regs.br_dx & 0xffff) << 4; #if 0 apminfo.apm_code32_seg_len = BIOS_regs.br_si & 0xffff; apminfo.apm_data_seg_len = BIOS_regs.br_di & 0xffff; #else apminfo.apm_code32_seg_len = 0x10000; apminfo.apm_data_seg_len = 0x10000; #endif apminfo.apm_entrypt = BIOS_regs.br_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); #endif } putchar('\n'); }