Adds hda link in and out drivers. The link in and link
out channels of HDA have small differences
with the host channels. Updates the existing
cavs_hda drivers and code to account for these
differences.
Signed-off-by: Tom Burdick <thomas.burdick@intel.com>
Adds an initial driver for HDA streams on cAVS. A common code base is
provided for all HDA streams while the drivers are identified
differently as they have small behavior differences.
Uses dma_status to describe the positions for read/write. Uses dma_reload
to inform when to move the read/write positions. This closely follows
how HDA is being used in SoF
Simple test case is provided for both drivers.
Signed-off-by: Tom Burdick <thomas.burdick@intel.com>
