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Adding newbus abstraction to parallel port devices
last time I looked, the parallel port chipset driver (isa/ppc) uses
microsequences to handle the hardware control/data ports for the
parallel port. For anyone who is unfamiliar with these, they are macros
built from I/O port bitmasks to handle the necessary hardware
control to run the parallel port.
The committer that wrote the parallel port driver said he used
microsequences because the driver was designed/implemented before
Since the purpose of the microsequences was (a) hardware abstraction and
(b) to increase speed, how could this be re-written to use newbus
instead without a performance loss?
My other computer is your windows box.
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