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Add setting machine type support to the loader.

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MFC after:	2 week
This commit is contained in:
Yoshihiro Takahashi 2009-12-31 12:05:48 +00:00
parent 86155157b9
commit 6925b4bda1
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=201339
4 changed files with 112 additions and 1 deletions
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2
sys/boot/pc98/libpc98/Makefile
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@ -8,7 +8,7 @@ INTERNALLIB=
SRCS= bioscd.c biosdisk.c biosmem.c biospnp.c \
biospci.c biossmap.c bootinfo.c bootinfo32.c \
comconsole.c devicename.c elf32_freebsd.c \
i386_copy.c i386_module.c nullconsole.c pxe.c pxetramp.s \
i386_copy.c i386_module.c nullconsole.c pc98_sys.c pxe.c pxetramp.s \
time.c vidconsole.c
# Enable PXE TFTP or NFS support, not both.

29
sys/boot/pc98/libpc98/libpc98.h Normal file
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@ -0,0 +1,29 @@
/*-
* Copyright (c) 2009 TAKAHASHI Yoshihiro <nyan@FreeBSD.org>
* 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.
*
* $FreeBSD$
*/
void set_machine_type(void);

78
sys/boot/pc98/libpc98/pc98_sys.c Normal file
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@ -0,0 +1,78 @@
/*-
* Copyright (c) 2009 TAKAHASHI Yoshihiro <nyan@FreeBSD.org>
* 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.
*
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include <btxv86.h>
#include <machine/cpufunc.h>
#define _KERNEL
#include <pc98/pc98/pc98_machdep.h>
/*
* Set machine type to PC98_SYSTEM_PARAMETER.
*/
void
set_machine_type(void)
{
int i;
u_long ret, data;
/* PC98_SYSTEM_PARAMETER (0x501) */
ret = ((*(u_char *)PTOV(0xA1501)) & 0x08) >> 3;
/* Wait V-SYNC */
while (inb(0x60) & 0x20) {}
while (!(inb(0x60) & 0x20)) {}
/* ANK 'A' font */
outb(0xa1, 0x00);
outb(0xa3, 0x41);
/* M_NORMAL, use CG window (all NEC OK) */
for (i = data = 0; i < 4; i++)
data += *((u_long *)PTOV(0xA4000) + i); /* 0xa4000 */
if (data == 0x6efc58fc) /* DA data */
ret |= M_NEC_PC98;
else
ret |= M_EPSON_PC98;
ret |= (inb(0x42) & 0x20) ? M_8M : 0;
/* PC98_SYSTEM_PARAMETER(0x400) */
if ((*(u_char *)PTOV(0xA1400)) & 0x80)
ret |= M_NOTE;
if (ret & M_NEC_PC98) {
/* PC98_SYSTEM_PARAMETER(0x458) */
if ((*(u_char *)PTOV(0xA1458)) & 0x80)
ret |= M_H98;
else
ret |= M_NOT_H98;
} else
ret |= M_NOT_H98;
(*(u_long *)PTOV(0xA1620)) = ret;
}

4
sys/boot/pc98/loader/main.c
View File

@ -40,6 +40,7 @@ __FBSDID("$FreeBSD$");
#include "bootstrap.h"
#include "libi386/libi386.h"
#include "libpc98/libpc98.h"
#include "btxv86.h"
#define KARGS_FLAGS_CD 0x1
@ -81,6 +82,9 @@ main(void)
{
int i;
/* Set machine type to PC98_SYSTEM_PARAMETER. */
set_machine_type();
/* Pick up arguments */
kargs = (void *)__args;
initial_howto = kargs->howto;