Turning on sound in the new iBook

[Paul Harrison]

A few people have asked me about this, so i thought i would post it here:
I have sound working on the new iBook, mostly from looking at the Darwin
source.

The basic steps were:
- powering up the sound system and one of the amps by writing to some
ports
- setting up the digital equalizer using I2C
- using the dmasound_pmac module for actual sound output

Full details here:

http://yoyo.cc.monash.edu.au/~pfh/ibook/sound.html

This is all really, really hacked together. It should all probably be put
together in one or two nice neat kernel modules at some stage.

--
Paul Harrison

Email: pfh at csse.monash.edu.au
Web:   http://yoyo.cc.monash.edu.au/~pfh/


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