CVS: cvs.openbsd.org: src

[Jacob Meuser <jakemsr_(_at_)_cvs_(_dot_)_openbsd_(_dot_)_org>]

CVSROOT:	/cvs
Module name:	src
Changes by:	jakemsr_(_at_)_cvs_(_dot_)_openbsd_(_dot_)_org	2008/09/15 16:40:50

Modified files:
	sys/dev/pci    : auich.c 

Log message:
this driver uses three dma segments; play, record, calibrate.
instead of using a linked list to describe the dma segments
use three distinct pointers.

also, this driver only needs 1 buffer descriptor for each dma
segment, since each buffer descriptor can handle as many samples
as each segment can hold.

makes the code a little easier to read and allows us to free
the calibration buffer when we're done with it.

idea originally from ratchov@ a while back.  tested by ratchov@
and myself.

ok ratchov@