3 Commits

Author SHA1 Message Date
nwhitehorn
e873cabccd Expand the DBDMA API to allow setting device-dependent control bits. While
here, clean up and document this a little.

Submitted by:	Marco Trillo
MFC after:	1 week
2008-09-27 15:41:16 +00:00
nwhitehorn
4c77244de0 Change the DBDMA API to allow DBDMA registers in a subregion of a resource. This is necessary to allow future support of DMA for the various Apple on-board ATA controllers.
MFC after:	1 week
2008-09-23 02:12:47 +00:00
marcel
7cc97ffd51 Add support for Apple's Descriptor-Based DMA (DBDMA) engine. The DMA
engine is usful to various  existing drivers, such as ata(4) and scc(4),
and is used bhy the soon to be added bm(4).

Submitted by:	Nathan Whitehorn
2008-06-07 21:56:48 +00:00