9fa68eae9f
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>
18 lines
654 B
Plaintext
18 lines
654 B
Plaintext
Available Documentation
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Apollo PLE 133 Chipset VT8601A North Bridge Datasheet, Rev. 1.82, October 22,
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2001, available from VIA:
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http://www.viavpsd.com/product/6/15/DS8601A182.pdf
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The datasheet is incomplete, some registers that need to be programmed are not
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explained at all and important bits are listed as "reserved". But you really
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need the datasheet to understand the code. "p. xxx" comments refer to page
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numbers of this document.
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XFree/XOrg drivers are available and of good quality, looking at the code
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there is a good idea if the datasheet does not provide enough information
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or if the datasheet seems to be wrong.
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