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/*-
* Copyright (c) 1997 Jonathan Lemon
* 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.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``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 AUTHOR 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.
*
* $FreeBSD$
*/
/*
* Functions for calling x86 BIOS functions from the BSD kernel
*/
#include <machine/asmacros.h>
#include "assym.s"
.text
/*
* bios32_apm98(regs, offset, segment)
* struct bios_regs *regs;
* u_int offset;
* u_short segment;
*/
ENTRY(bios32_apm98)
pushl %ebp
movl 16(%esp),%ebp
mov %bp,_bioscall_vector+4
movl 12(%esp),%ebp
movl %ebp,_bioscall_vector
movl 8(%esp),%ebp
pushl %ebx
pushl %esi
pushl %edi
movl 0(%ebp),%eax
movl 4(%ebp),%ebx
movl 8(%ebp),%ecx
movl 12(%ebp),%edx
movl 16(%ebp),%esi
movl 20(%ebp),%edi
pushl %ebp
pushfl
cli
lcall *_bioscall_vector
movl %eax,%edi
movl %edx,%esi
lahf
movl apm_necsmm_addr,%edx
andl %edx,%edx
jz 9f
inb %dx,%al
andl apm_necsmm_mask,%eax
outb %al,%dx
9:
sti
popl %ebp
movl %edi,0(%ebp)
movl %ebx,4(%ebp)
movl %ecx,8(%ebp)
movl %esi,12(%ebp)
movl $0,16(%ebp) /* esi is cannot get */
movl $0,20(%ebp) /* edi is cannot get */
movl %edi,%eax
andl $0x100,%eax
popl %edi
popl %esi
popl %ebx
popl %ebp
ret
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