[src/trunk]: src/sys/arch/i386/stand Addredd port-i386/9897, but differently....

To: source-changes-hg%NetBSD.org@localhost
Subject: [src/trunk]: src/sys/arch/i386/stand Addredd port-i386/9897, but differently....
From: tsarna <tsarna%NetBSD.org@localhost>
Date: Fri, 24 Jan 2020 07:00:18 +0000

details:   https://anonhg.NetBSD.org/src/rev/fae358fe1737
branches:  trunk
changeset: 485275:fae358fe1737
user:      tsarna <tsarna%NetBSD.org@localhost>
date:      Sun Apr 23 19:57:12 2000 +0000

description:
Addredd port-i386/9897, but differently. Since the effect of resetting
the video mode on machines with ancient or no video cards is not clear,
for safety's sake a I created a new biosboot variant, biosboot_resetvideo
that does the call.

Anyway, now I can boot my i-opener without hitting Tab. Thanks Andrew!

diffstat:

 sys/arch/i386/stand/Makefile                     |   3 +-
 sys/arch/i386/stand/biosboot/Makefile            |   6 +-
 sys/arch/i386/stand/biosboot/main.c              |   6 +-
 sys/arch/i386/stand/biosboot_resetvideo/Makefile |   5 +
 sys/arch/i386/stand/lib/Makefile                 |   4 +-
 sys/arch/i386/stand/lib/biosvideomode.S          |  67 ++++++++++++++++++++++++
 sys/arch/i386/stand/lib/libi386.h                |   3 +-
 7 files changed, 88 insertions(+), 6 deletions(-)

diffs (169 lines):

diff -r 27203ae91cf2 -r fae358fe1737 sys/arch/i386/stand/Makefile
--- a/sys/arch/i386/stand/Makefile      Sun Apr 23 19:55:51 2000 +0000
+++ b/sys/arch/i386/stand/Makefile      Sun Apr 23 19:57:12 2000 +0000
@@ -1,8 +1,9 @@
-#      $NetBSD: Makefile,v 1.11 2000/01/15 01:17:12 christos Exp $
+#      $NetBSD: Makefile,v 1.12 2000/04/23 19:57:12 tsarna Exp $
 
 SUBDIR=                biosboot installboot
 SUBDIR+=       dosboot
 SUBDIR+=       biosboot_com0
+SUBDIR+=       biosboot_resetvideo
 #SUBDIR+=      genprom netboot
 
 .include <bsd.subdir.mk>
diff -r 27203ae91cf2 -r fae358fe1737 sys/arch/i386/stand/biosboot/Makefile
--- a/sys/arch/i386/stand/biosboot/Makefile     Sun Apr 23 19:55:51 2000 +0000
+++ b/sys/arch/i386/stand/biosboot/Makefile     Sun Apr 23 19:57:12 2000 +0000
@@ -1,4 +1,4 @@
-#      $NetBSD: Makefile,v 1.25 2000/01/20 16:51:01 christos Exp $
+#      $NetBSD: Makefile,v 1.26 2000/04/23 19:57:13 tsarna Exp $
 
 S=     ${.CURDIR}/../../../../
 
@@ -28,6 +28,10 @@
 CPPFLAGS+= -DSUPPORT_SERIAL=CONSDEV_COM0 -DDIRECT_SERIAL
 .endif
 
+.if (${BASE} == "biosboot_resetvideo")
+CPPFLAGS+= -DRESET_VIDEO
+.endif
+
 CPPFLAGS+= -DSUPPORT_USTARFS
 CPPFLAGS+= -DPASS_BIOSGEOM
 #CPPFLAGS+= -DBOOTPASSWD
diff -r 27203ae91cf2 -r fae358fe1737 sys/arch/i386/stand/biosboot/main.c
--- a/sys/arch/i386/stand/biosboot/main.c       Sun Apr 23 19:55:51 2000 +0000
+++ b/sys/arch/i386/stand/biosboot/main.c       Sun Apr 23 19:57:12 2000 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: main.c,v 1.18 2000/03/29 14:29:34 soren Exp $  */
+/*     $NetBSD: main.c,v 1.19 2000/04/23 19:57:13 tsarna Exp $ */
 
 /*
  * Copyright (c) 1996, 1997, 1999
@@ -236,6 +236,10 @@
 #endif
        gateA20();
 
+#ifdef RESET_VIDEO
+       biosvideomode();
+#endif
+
        print_banner();
 
        /* try to set default device to what BIOS tells us */
diff -r 27203ae91cf2 -r fae358fe1737 sys/arch/i386/stand/biosboot_resetvideo/Makefile
--- /dev/null   Thu Jan 01 00:00:00 1970 +0000
+++ b/sys/arch/i386/stand/biosboot_resetvideo/Makefile  Sun Apr 23 19:57:12 2000 +0000
@@ -0,0 +1,5 @@
+#      $NetBSD: Makefile,v 1.1 2000/04/23 19:57:14 tsarna Exp $
+
+BASE= biosboot_resetvideo
+
+.include "../biosboot/Makefile"
diff -r 27203ae91cf2 -r fae358fe1737 sys/arch/i386/stand/lib/Makefile
--- a/sys/arch/i386/stand/lib/Makefile  Sun Apr 23 19:55:51 2000 +0000
+++ b/sys/arch/i386/stand/lib/Makefile  Sun Apr 23 19:57:12 2000 +0000
@@ -1,4 +1,4 @@
-#      $NetBSD: Makefile,v 1.13 1999/12/21 14:22:54 drochner Exp $
+#      $NetBSD: Makefile,v 1.14 2000/04/23 19:57:14 tsarna Exp $
 
 S?=    ${.CURDIR}/../../../../
 
@@ -15,7 +15,7 @@
 #CPPFLAGS+= -DNO_DISKLABEL
 #CPPFLAGS+= -DSAVE_MEMORY
 
-SRCS= pcio.c conio.S comio.S comio_direct.c
+SRCS= pcio.c conio.S comio.S comio_direct.c biosvideomode.S
 SRCS+= getsecs.c biosgetrtc.S biosdelay.S biosreboot.S gatea20.c
 SRCS+= biosmem.S getextmemx.c biosmemx.S printmemlist.c
 SRCS+= pread.c menuutils.c parseutils.c
diff -r 27203ae91cf2 -r fae358fe1737 sys/arch/i386/stand/lib/biosvideomode.S
--- /dev/null   Thu Jan 01 00:00:00 1970 +0000
+++ b/sys/arch/i386/stand/lib/biosvideomode.S   Sun Apr 23 19:57:12 2000 +0000
@@ -0,0 +1,67 @@
+
+/*
+ * Copyright (c) 1996
+ *     Perry E. Metzger.  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 acknowledgements:
+ *     This product includes software developed for the NetBSD Project
+ *     by Perry E. Metzger.
+ * 4. The names of the authors 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 AUTHOR 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 <machine/asm.h>
+
+#define        data32  .byte 0x66
+
+       .text
+
+ENTRY(biosvideomode)
+       pushl   %ebp
+       movl    %esp,%ebp
+       pushl   %ebx
+       push    %esi
+       push    %edi
+
+       call    _C_LABEL(prot_to_real)
+
+       movb    $0, %ah
+       movb    $2, %al
+       int     $0x10
+       # zero-extend 16-bit result to 32 bits.
+       data32
+       movl    $0, %ebx
+       mov     %eax,%ebx               # !!! at run time, it is mov %ax,%bx
+
+       data32
+       call    _C_LABEL(real_to_prot)
+
+       movl    %ebx, %eax
+
+       pop     %edi
+       pop     %esi
+       popl    %ebx
+       popl    %ebp
+       ret
diff -r 27203ae91cf2 -r fae358fe1737 sys/arch/i386/stand/lib/libi386.h
--- a/sys/arch/i386/stand/lib/libi386.h Sun Apr 23 19:55:51 2000 +0000
+++ b/sys/arch/i386/stand/lib/libi386.h Sun Apr 23 19:57:12 2000 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: libi386.h,v 1.10 1999/12/21 14:22:54 drochner Exp $    */
+/*     $NetBSD: libi386.h,v 1.11 2000/04/23 19:57:14 tsarna Exp $      */
 
 /*
  * Copyright (c) 1996
@@ -50,6 +50,7 @@
 int getbasemem __P((void));
 int getextmemx __P((void));
 int getextmem1 __P((void));
+int biosvideomode __P((void));
 #ifdef CONSERVATIVE_MEMDETECT
 #define getextmem() getextmem1()
 #else

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