[SeaBIOS] [PATCH 1/4] vgabios: Only init BDA device details in init_bios_area()
Kevin O'Connor
kevin at koconnor.net
Thu Oct 23 22:45:09 CEST 2014
Don't set the device details when changing modes, and don't set mode
details outside of mode setting.
Signed-off-by: Kevin O'Connor <kevin at koconnor.net>
---
vgasrc/vgabios.c | 9 ---------
vgasrc/vgainit.c | 19 ++++++++-----------
2 files changed, 8 insertions(+), 20 deletions(-)
diff --git a/vgasrc/vgabios.c b/vgasrc/vgabios.c
index 5fdb549..e2a4efc 100644
--- a/vgasrc/vgabios.c
+++ b/vgasrc/vgabios.c
@@ -326,15 +326,6 @@ vga_set_mode(int mode, int flags)
SET_BDA(video_pagestart, 0x0000);
SET_BDA(video_page, 0x00);
- // FIXME We nearly have the good tables. to be reworked
- SET_BDA(dcc_index, 0x08); // 8 is VGA should be ok for now
- SET_BDA(video_savetable
- , SEGOFF(get_global_seg(), (u32)&video_save_pointer_table));
-
- // FIXME
- SET_BDA(video_msr, 0x00); // Unavailable on vanilla vga, but...
- SET_BDA(video_pal, 0x00); // Unavailable on vanilla vga, but...
-
// Set the ints 0x1F and 0x43
SET_IVT(0x1f, SEGOFF(get_global_seg(), (u32)&vgafont8[128 * 8]));
diff --git a/vgasrc/vgainit.c b/vgasrc/vgainit.c
index 5c76c5b..c323cf8 100644
--- a/vgasrc/vgainit.c
+++ b/vgasrc/vgainit.c
@@ -140,20 +140,17 @@ init_bios_area(void)
// set 80x25 color (not clear from RBIL but usual)
set_equipment_flags(0x30, 0x20);
- // the default char height
- SET_BDA(char_height, 0x10);
-
- // Clear the screen
- SET_BDA(video_ctl, 0x60);
-
- // Set the basic screen we have
- SET_BDA(video_switches, 0xf9);
-
// Set the basic modeset options
SET_BDA(modeset_ctl, 0x51);
- // Set the default MSR
- SET_BDA(video_msr, 0x09);
+ // FIXME We nearly have the good tables. to be reworked
+ SET_BDA(dcc_index, 0x08); // 8 is VGA should be ok for now
+ SET_BDA(video_savetable
+ , SEGOFF(get_global_seg(), (u32)&video_save_pointer_table));
+
+ // FIXME
+ SET_BDA(video_msr, 0x00); // Unavailable on vanilla vga, but...
+ SET_BDA(video_pal, 0x00); // Unavailable on vanilla vga, but...
}
int VgaBDF VAR16 = -1;
--
1.9.3
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