Announcing s3c64xx XWindows fbdrv w/ XAA+XVideo+HWcursor
David F. Carlson
dave at chronolytics.com
Thu Sep 24 13:42:20 EDT 2009
S3C6410 based Xwindows fbdev with
o XAA accelerated fills, lines, expands, blits, offscreen pixmaps/stipples
o Alpha-blended HWCursor
o XVideo Support (using the Samsung Post-Processor colorspace driver)
o Tested with the Maemo Mer kernel 184.108.40.206 because...
This is not as off topic as it might seem...
The XWindows subsystem needs help from the kernel in s3cfb "standards"
(support MMIO interface) and configuration (how to configure per-screen
offscreen memory), some scheme for accessing the Post-Processor and G2D
graphics support. (And of course, gaining driver support for pp and g2d
This driver is pretty much hardcoded for s3c64xx. If kernel hooks for
describing configuration this driver base could be expanded to
support many s3c variants (with g2d and pp).
There is some discussion in the the README.
The most excellent XAA base code was done by
Matan Ziv-Av <matan at svgalib dot org>
The original XVideo code was done by
Jetta Tang <jetta.tang at hhcn dot com>
The g2d and pp drivers upon which this code is based were provided by
Samsung Semiconductor. Thanks.
Time and Materials and Hosting
Chronolytics Inc. Real-Time Embedded Software http://chronolytics.com
David F. Carlson Chronolytics, Inc. Rochester, NY
mailto:dave at chronolytics.com http://www.chronolytics.com
"The faster I go, the behinder I get." --Lewis Carroll
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