switching should be more efficient and tasks are stored in linked
lists to eliminate unnecessary task switching to improve performance.
Audio should no longer skip on swcodec targets caused by too CPU
hungry UI thread or background threads.
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@10958 a1c6a512-1295-4272-9138-f99709370657
Also includes a rewrite of the Coldfire I2C driver to include both read and write.
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@10272 a1c6a512-1295-4272-9138-f99709370657
