diff options
| author | Knut Petersen <Knut_Petersen@t-online.de> | 2005-09-09 13:04:56 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2005-09-09 13:58:02 -0700 |
| commit | 9fa68eae9f8291a98bfe00b94b78f72eb253165a (patch) | |
| tree | f3619e7302871a5d56264f6df4076c30857483ce /Documentation/fb/cyblafb/todo | |
| parent | 6062bfa1644f401c08e78d5c8a161f7d11c5c830 (diff) | |
[PATCH] framebuffer: new driver for cyberblade/i1 graphics core
This is a framebuffer driver for the Cyberblade/i1 graphics core.
Currently tridenfb claims to support the cyberblade/i1 graphics core. This
is of very limited truth. Even vesafb is faster and provides more working
modes and a much better quality of the video signal. There is a great
number of bugs in tridentfb ... but most often it is impossible to decide
if these bugs are real bugs or if fixing them for the cyberblade/i1 core
would break support for one of the other supported chips.
Tridentfb seems to be unmaintained,and documentation for most of the
supported chips is not available. So "fixing" cyberblade/i1 support inside
of tridentfb was not an option, it would have caused numerous
if(CYBERBLADEi1) else ... cases and would have rendered the code to be
almost unmaintainable.
A first version of this driver was published on 2005-07-31. A fix for a
bug reported by Jochen Hein was integrated as well as some changes
requested by Antonino A. Daplas.
A message has been added to tridentfb to inform current users of tridentfb
to switch to cyblafb if the cyberblade/i1 graphics core is detected.
This patch is one logical change, but because of the included documentation
it is bigger than 70kb. Therefore it is not sent to lkml and
linux-fbdev-devel,
Signed-off-by: Knut Petersen <Knut_Petersen@t-online.de>
Cc: Muli Ben-Yehuda <mulix@mulix.org>
Acked-by: Antonino Daplas <adaplas@pol.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'Documentation/fb/cyblafb/todo')
| -rw-r--r-- | Documentation/fb/cyblafb/todo | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/Documentation/fb/cyblafb/todo b/Documentation/fb/cyblafb/todo new file mode 100644 index 00000000000..80fb2f89b6c --- /dev/null +++ b/Documentation/fb/cyblafb/todo @@ -0,0 +1,32 @@ +TODO / Missing features +======================= + +Verify LCD stuff "stretch" and "center" options are + completely untested ... this code needs to be + verified. As I don't have access to such + hardware, please contact me if you are + willing run some tests. + +Interlaced video modes The reason that interleaved + modes are disabled is that I do not know + the meaning of the vertical interlace + parameter. Also the datasheet mentions a + bit d8 of a horizontal interlace parameter, + but nowhere the lower 8 bits. Please help + if you can. + +low-res double scan modes Who needs it? + +accelerated color blitting Who needs it? The console driver does use color + blitting for nothing but drawing the penguine, + everything else is done using color expanding + blitting of 1bpp character bitmaps. + +xpanning Who needs it? + +ioctls Who needs it? + +TV-out Will be done later + +??? Feel free to contact me if you have any + feature requests |