tree 2417d66867d722d96ec7e5f9dfc4b3a5161cd44e
parent 10582ff832798813ba3a17f13f3ab46250388b47
author Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk> 1400415655 +0100
committer Alexander Graf <agraf@suse.de> 1402917876 +0200

macio: handle non-block ATAPI DMA transfers

Currently the macio DMA routines assume that all DMA requests are for read/write
block transfers. This is not always the case for ATAPI, for example when
requesting a TOC where the response is generated directly in the IDE buffer.

Detect these non-block ATAPI DMA transfers (where no lba is specified in the
command) and copy the results directly into RAM as indicated by the DBDMA
descriptor. This fixes CDROM access under MorphOS.

Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Signed-off-by: Alexander Graf <agraf@suse.de>