linux.git/drivers/char/vt.c, branch v2.6.23

Fix the graphic corruption issue on IA64 machines

2007-07-17T17:23:13+00:00

VGA console driver can misunderstand the current mode(Text/Graphic) under
"disable console blanking" setting.  When "disable console blank" is set
(blankinterval=0), "do_unblank_screen()" function returns without changing
"blank_state", and when "blank_state" is "blank_off", "do_blank_screen()
function returns without invoking sw->con_blank() function.  That's why VGA
console driver can misunderstand the current mode.

Signed-off-by: Nobuhiro Tachino 
Signed-off-by: Taku Izumi 
Cc: "Antonino A. Daplas" 
Cc: "Luck, Tony" 
Acked-by: Pete Zaitcev 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

vt: add comment for unbind_con_driver()

2007-07-17T17:23:11+00:00

- add comment for unbind_con_driver().
- bind_con_driver() is made private again

Signed-off-by: Jesse Barnes 
Signed-off-by: Antonino Daplas 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

fbcon: allow fbcon to use the primary display driver

2007-07-17T17:23:11+00:00

Allow fbcon to select the primary display adapter using the
fb_is_primary_device() arch-specific helper.  If a a primary adapter is
detected, fbcon will unbind the old adapter from the VT layer, then rebind
using the new adapter.  This requires that bind_/unbind_con_driver() be made
public.

Because this feature may produce unexpected behavior (from the user's POV),
this must be explicitly enabled in Kconfig.

[akpm@linux-foundation.org: export unbind_con_driver]
Signed-off-by: Antonino Daplas 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

Char: vt, use ARRAY_SIZE

2007-07-17T17:23:10+00:00

vt, use ARRAY_SIZE

Signed-off-by: Jiri Slaby 
Acked-by: Alan Cox 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

Char: vt, use kzalloc

2007-07-17T17:23:10+00:00

vt, use kzalloc

Signed-off-by: Jiri Slaby 
Acked-by: Alan Cox 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

console UTF-8 fixes (fix)

2007-06-24T15:59:10+00:00

Recently my console UTF-8 patch went mainline.  Here is an additional patch
that fixes two nasty issues and improves a third one, namely:

1. My patch changed the behavior if a glyph is not found in the Unicode
   mapping table. Previously for Unicode values less than 256 or 512 the
   kernel tried to display the glyph from that position of the glyph table,
   which could lead to a different accented letter being displayed. I
   removed this fallback possibility and changed it to display the
   replacement symbol.

   As Behdad pointed out, some fonts (e.g. sun12x22 from the kbd package)
   lack Unicode mapping information, hence all you get is lots of question
   marks. Though theoretically it's actually a user-space bug (the font
   should be fixed), Behdad and I both believe that it'd be good to work
   around in the kernel by re-introducing the fallback solution for ASCII
   characters only. This sounds a quite reasonable decision, since all fonts
   ship the ASCII characters in the first 128 positions. This way users
   won't be surprised by lots of question marks just because s/he issued a
   not-so-perfectly parameterized setfont command. As this fallback is only
   re-introduced for code points below 128, you still won't see an accented
   letter replaced by another, but at least you'll always get the English
   letters right.

2. My patch introduced "question mark with inverted color attributes" as a
   last resort fallback glyph. Though it perfectly works on VGA console, on
   framebuffer you may end up with question marks that are highlighed but
   shouldn't be, and normal characters that are accidentally highlighed.
   This is caused by missing FLUSHes when changing the color attribute.

3. I've updated the table of double-width character based on Markus's
   updated version. Only ten new code poings (one interval) is added.

Signed-off-by: Egmont Koblinger 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

use mutex instead of semaphore in virtual console driver

2007-05-08T18:15:33+00:00

The virtual console driver uses a semaphore as mutex.  Use the mutex API
instead of the (binary) semaphore.

Signed-off-by: Matthias Kaehlcke 
Cc: "Antonino A. Daplas" 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

vt: expose system-wide UTF-8 default setting via sysfs

2007-05-08T18:15:28+00:00

Create a variable, default_utf8, that defines the system-wide default UTF-8
setting.  This variable can be altered via sysfs. If the variable is properly
set, this should mimimize breakage of UTF-8 encoded consoles when doing a
reset or echo -e '\033c' and of newly opened/allocated consoles.

This is based from patches by Jan Engelhardt and Paul LeoNerd Evans.

Signed-off-by: Antonino Daplas 
Cc: Jan Engelhardt 
Cc: Paul LeoNerd Evans 
Cc: "H. Peter Anvin" 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

vt: add color support to the "underline" and "italic" attributes

2007-05-08T18:15:27+00:00

Add color support to the "underline" and "italic" attributes as in
OpenBSD/NetBSD-style (vt220) and xterm.

Signed-off-by: Jan Engelhardt 
Acked-by: "Antonino A. Daplas" 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

vt: allow for the palette to be exposed and changed via sysfs

2007-05-08T18:15:27+00:00

Allow for the palette to be exposed and changed via sysfs.  A call to
/usr/bin/reset will slurp the new definitions in for the current console.

Already posted at http://lkml.org/lkml/2006/1/15/149

Signed-off-by: Jan Engelhardt 
Cc: "Antonino A. Daplas" 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds