[src/trunk]: src/sys/arch/x86 Add vga_post_set_vbe for setting video mode.

[jmcneill <jmcneill%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/5568e386b4ac
branches:  trunk
changeset: 746952:5568e386b4ac
user:      jmcneill <jmcneill%NetBSD.org@localhost>
date:      Mon Aug 24 11:33:49 2009 +0000

description:
Add vga_post_set_vbe for setting video mode.

diffstat:

 sys/arch/x86/include/vga_post.h |   3 ++-
 sys/arch/x86/x86/vga_post.c     |  12 ++++++++++--
 2 files changed, 12 insertions(+), 3 deletions(-)

diffs (49 lines):

diff -r 25cfdf9ab6a8 -r 5568e386b4ac sys/arch/x86/include/vga_post.h
--- a/sys/arch/x86/include/vga_post.h   Mon Aug 24 11:32:49 2009 +0000
+++ b/sys/arch/x86/include/vga_post.h   Mon Aug 24 11:33:49 2009 +0000
@@ -1,4 +1,4 @@
-/* $NetBSD: vga_post.h,v 1.2 2008/03/29 17:40:22 jmcneill Exp $ */
+/* $NetBSD: vga_post.h,v 1.3 2009/08/24 11:33:49 jmcneill Exp $ */
 
 /*-
  * Copyright (c) 2007 Joerg Sonnenberger <joerg%NetBSD.org@localhost>.
@@ -38,5 +38,6 @@
 struct vga_post        *vga_post_init(int, int, int);
 void           vga_post_free(struct vga_post *);
 void           vga_post_call(struct vga_post *);
+void           vga_post_set_vbe(struct vga_post *, uint16_t);
 #endif
 #endif
diff -r 25cfdf9ab6a8 -r 5568e386b4ac sys/arch/x86/x86/vga_post.c
--- a/sys/arch/x86/x86/vga_post.c       Mon Aug 24 11:32:49 2009 +0000
+++ b/sys/arch/x86/x86/vga_post.c       Mon Aug 24 11:33:49 2009 +0000
@@ -1,4 +1,4 @@
-/* $NetBSD: vga_post.c,v 1.12 2009/03/15 21:32:36 cegger Exp $ */
+/* $NetBSD: vga_post.c,v 1.13 2009/08/24 11:33:49 jmcneill Exp $ */
 
 /*-
  * Copyright (c) 2007 Joerg Sonnenberger <joerg%NetBSD.org@localhost>.
@@ -30,7 +30,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: vga_post.c,v 1.12 2009/03/15 21:32:36 cegger Exp $");
+__KERNEL_RCSID(0, "$NetBSD: vga_post.c,v 1.13 2009/08/24 11:33:49 jmcneill Exp $");
 
 #include <sys/param.h>
 #include <sys/device.h>
@@ -227,6 +227,14 @@
 }
 
 void
+vga_post_set_vbe(struct vga_post *sc, uint16_t vbemode)
+{
+       sc->emu.x86.R_EBX = vbemode | 0x4000;
+       sc->emu.x86.R_EAX = 0x4f02;
+       X86EMU_exec_intr(&sc->emu, 0x10);
+}
+
+void
 vga_post_free(struct vga_post *sc)
 {
        uvm_pglistfree(&sc->ram_backing);