audio accelerators.
Mixing is done in hardware by the ASSP, but is limited to 4 simultaneous
channels due to the restricted "minisrc" image that we are currently
working with.
Due to limitations in the audio subsystem, I'm currently attaching multiple
'audio' devices to 'esa', one for each voice. Because of this hack, the
default ESA_NUM_VOICES is 1.
fancy, works for the basic output case, but does not support programs
which use playback while going into suspend.
Sketched after code found in FreeBSD and Linux drivers.
jmcneill