z8530_status

Name

z8530_status --  Handle a PIO status exception

Synopsis

void z8530_status (struct z8530_channel * chan);

Arguments

chan

Z8530 channel to process

Description

A status event occured in PIO synchronous mode. There are several reasons the chip will bother us here. A transmit underrun means we failed to feed the chip fast enough and just broke a packet. A DCD change is a line up or down. We communicate that back to the protocol layer for synchronous PPP to renegotiate.