Announcing s3c64xx XWindows fbdrv w/ XAA+XVideo+HWcursor
ben at trinity.fluff.org
Thu Sep 24 17:09:58 EDT 2009
On Thu, Sep 24, 2009 at 01:42:20PM -0400, David F. Carlson wrote:
> 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 188.8.131.52 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
> including suspend/resume.)
Are the necessary changes for the s3cfb postable to the list to start
the review process for them?
> 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).
It would be good to get the discussion about these items going before
we get too much further down the development process.
> 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
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