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Add support for booting in VESA 0x102 videomode. Corresponding patches to

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syscons are being reviewed by sos.
This commit is contained in:
Poul-Henning Kamp 1997-07-31 08:07:54 +00:00
parent caaf2b4b9a
commit d9f5f52664
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=27789
4 changed files with 46 additions and 6 deletions
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5
sys/i386/boot/biosboot/Makefile
View File

@ -1,4 +1,4 @@
# $Id: Makefile,v 1.56 1997/04/25 19:37:58 bde Exp $
# $Id: Makefile,v 1.57 1997/06/09 05:10:54 bde Exp $
#
PROG= boot
@ -10,7 +10,8 @@ BINDIR= /usr/mdec
BINMODE= 444
CFLAGS= -O2 -malign-functions=0 -malign-jumps=0 -malign-loops=0 \
-mno-486 \
-DDO_BAD144 -DBOOTWAIT=${BOOTWAIT} -DTIMEOUT=${TIMEOUT}
-DVESA_SUPPORT -DDO_BAD144 \
-DBOOTWAIT=${BOOTWAIT} -DTIMEOUT=${TIMEOUT}
CFLAGS+= -DBOOTSEG=${BOOTSEG} -DBOOTSTACK=${BOOTSTACK}
CFLAGS+= -I${.CURDIR}/../../..
CFLAGS+= ${CWARNFLAGS}

30
sys/i386/boot/biosboot/bios.S
View File

@ -24,7 +24,7 @@
* the rights to redistribute these changes.
*
* from: Mach, Revision 2.2 92/04/04 11:34:26 rpd
* $Id: bios.S,v 1.10 1997/05/16 10:39:59 bde Exp $
* $Id: bios.S,v 1.11 1997/07/12 10:23:15 joerg Exp $
*/
/*
@ -476,3 +476,31 @@ xdone:
pop %ebx
pop %ebp
ret
#ifdef VESA_SUPPORT
ENTRY(vesa_mode)
push %ebp
mov %esp, %ebp
push %ebx
push %esi
push %edi
movw 0x8(%ebp), %bx
call EXT(prot_to_real)
data32
mov $0x4f02, %eax
sti
int $0x10
cli
data32
call EXT(real_to_prot)
pop %edi
pop %esi
pop %ebx
pop %ebp
ret
#endif

12
sys/i386/boot/biosboot/boot.c
View File

@ -24,7 +24,7 @@
* the rights to redistribute these changes.
*
* from: Mach, [92/04/03 16:51:14 rvb]
* $Id: boot.c,v 1.66 1997/06/09 05:10:55 bde Exp $
* $Id: boot.c,v 1.67 1997/06/14 10:00:42 bde Exp $
*/
@ -201,6 +201,12 @@ loadprog(void)
unsigned pad;
char *s, *t;
#ifdef VESA_SUPPORT
if (bootinfo.bi_vesa)
vesa_mode(bootinfo.bi_vesa);
#endif
read((void *)&head, sizeof(head));
if ( N_BADMAG(head)) {
printf("Invalid format!\n");
@ -381,6 +387,10 @@ getbootdev(char *ptr, int *howto)
goto nextarg;
if (c == 'a')
f |= RB_ASKNAME;
#ifdef VESA_SUPPORT
if (c == 'b')
bootinfo.bi_vesa = 0x102;
#endif
if (c == 'C')
f |= RB_CDROM;
if (c == 'c')

5
sys/i386/include/bootinfo.h
View File

@ -29,7 +29,7 @@
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $Id$
* $Id: bootinfo.h,v 1.7 1997/02/22 09:33:57 peter Exp $
*/
#ifndef _MACHINE_BOOTINFO_H_
@ -55,7 +55,8 @@ struct bootinfo {
unsigned long bi_bios_geom[N_BIOS_GEOM];
unsigned int bi_size;
unsigned char bi_memsizes_valid;
unsigned char bi_pad[3];
unsigned char bi_pad[1];
unsigned short bi_vesa;
unsigned long bi_basemem;
unsigned long bi_extmem;
unsigned long bi_symtab;