b43b844f6f
are called from the interrupt or timeout handler, 0 otherwise. - use this to know if we can busy-wait for wait_for_unbusy or wait_for_ready This fixes a bug where CDs withot the DRQ_INTR capability would not busy-wait for the CMDOUT phase. While I'm there change 2 delay() to DELAY() for consistency, and garbage-collect some old code from wdcintr() which has been ifdef'd out for some time now.