[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>
diff --git a/drivers/video/Kconfig b/drivers/video/Kconfig
index e906b54..e27aefd 100644
--- a/drivers/video/Kconfig
+++ b/drivers/video/Kconfig
@@ -1177,6 +1177,32 @@
Please read the <file:Documentation/fb/README-sstfb.txt> for supported
options and other important info support.
+config FB_CYBLA
+ tristate "Cyberblade/i1 support"
+ depends on FB && PCI
+ select FB_CFB_IMAGEBLIT
+ select FB_SOFT_CURSOR
+ select VIDEO_SELECT
+ ---help---
+ This driver is supposed to support the Trident Cyberblade/i1
+ graphics core integrated in the VIA VT8601A North Bridge,
+ also known as VIA Apollo PLE133.
+
+ Status:
+ - Developed, tested and working on EPIA 5000 and EPIA 800.
+ - Does work reliable on all systems with CRT/LCD connected to
+ normal VGA ports.
+ - Should work on systems that do use the internal LCD port, but
+ this is absolutely not tested.
+
+ Character imageblit, copyarea and rectangle fill are hw accelerated,
+ ypan scrolling is used by default.
+
+ Please do read <file:Documentation/fb/cyblafb/*>.
+
+ To compile this driver as a module, choose M here: the
+ module will be called cyblafb.
+
config FB_TRIDENT
tristate "Trident support"
depends on FB && PCI
@@ -1190,8 +1216,12 @@
but also on some motherboards. For more information, read
<file:Documentation/fb/tridentfb.txt>
+ Cyberblade/i1 support will be removed soon, use the cyblafb driver
+ instead.
+
Say Y if you have such a graphics board.
+
To compile this driver as a module, choose M here: the
module will be called tridentfb.
@@ -1202,7 +1232,6 @@
This will compile the Trident frame buffer device with
acceleration functions.
-
config FB_PM3
tristate "Permedia3 support"
depends on FB && PCI && BROKEN