Re: "Fix ATAPI transfer lengths" causes CD writing regression

Alan Cox
2007-11-06T12:50:20Z

> Just to make sure I'm not misunderstanding it. So, PDC202xx will lock
> up if you transfer allocation size, reset and then try to drain, but
> it's okay to keep draining as part of continued PIO transfer, right?

The following hang mine:

PIO transfer
Reset state machine
Read data register

DMA transfer in progress
Read data register

And this does not

PIO transfer
Keep reading data register while checking DRQ