Z8530_RX(9)                             Internal Functions                            Z8530_RX(9)



NAME
       z8530_rx - Handle a PIO receive event

SYNOPSIS
       void z8530_rx(struct z8530_channel * c);

ARGUMENTS
       c
           Z8530 channel to process

DESCRIPTION
       Receive handler for receiving in PIO mode. This is much like the async one but not quite
       the same or as complex

NOTE
       Its intended that this handler can easily be separated from the main code to run realtime.
       That'll be needed for some machines (eg to ever clock 64kbits on a sparc ;)).

       The RT_LOCK macros don't do anything now. Keep the code covered by them as short as
       possible in all circumstances - clocks cost baud. The interrupt handler is assumed to be
       atomic w.r.t. to other code - this is true in the RT case too.

       We only cover the sync cases for this. If you want 2Mbit async do it yourself but consider
       medical assistance first. This non DMA synchronous mode is portable code. The DMA mode
       assumes PCI like ISA DMA

       Called with the device lock held

AUTHOR
       Alan Cox <alan AT lxorguk.uk>
           Author.

COPYRIGHT
Kernel Hackers Manual 4.8.                 January 2017                               Z8530_RX(9)