ba922d31d8
Re-work the Tx side to avoid calling into the tty layer at
...
interrupt time. This was the cause of the 'mmu fault' panics
seen by several people, as the Tx interrupt is at a higher
priority that spltty().
1999-08-01 09:35:05 +00:00
9737cf763a
Fix a problem where no Tx Empty interrupt ever happened if CTS
...
was deasserted and we wanted to change parameters to -crtscts
This effectively stalled the transmitter since with TS_BUSY set
we only change parameters during the Tx interrupt handler.
1999-04-03 13:13:19 +00:00
fc658e2d3e
Don't update the CORx registers unless they really have changed.
...
Also make console Tx handling wait until the Tx FIFO has drained and
the shift-register is empty before sending console characters.
1999-02-21 14:01:50 +00:00
3a5b0d88ca
That #define splserial() really didn't want to be there...
1999-02-20 16:23:39 +00:00
0ed9dc11d7
Delay serial port parameter changes until the Tx FIFO has emptied.
1999-02-20 00:27:29 +00:00
94719c7b9a
New MI front-end for the Cirrus Logic CD240[01] Multi-protocol
...
Communications Controller.
This is still a work in progress, but it is functional enough to
be usable.
1999-02-13 17:05:19 +00:00
scw