scc(4) driver still used?

Izumi Tsutsui

2011-06-21 12:39:03 UTC

Post by Erik E. Fair
I've been poking around serial drivers and documentation issues,
and I see that there is an scc(4) man page for pmax's Zilog 8530
serial ports, but -current has those drivers as zsc in the
configuration files.
Is there an "scc" driver for pmax any more?

It has been superseded by MI zs driver and children with wscons support.
http://mail-index.NetBSD.org/source-changes/2006/07/29/0022.html

scc was derived from 4.4BSD, and PMAXen have quirks in its wiring:
---
* NOTE: The wiring we assume is the one on the 3min:
*
* out A-TxD --> TxD keybd or mouse
* in A-RxD --> RxD keybd or mouse
* out A-DTR~ --> DTR comm
* out A-RTS~ --> RTS comm
* in A-CTS~ --> SI comm
* in A-DCD~ --> RI comm
* in A-SYNCH~--> DSR comm
* out B-TxD --> TxD comm
* in B-RxD --> RxD comm
* in B-RxC --> TRxCB comm
* in B-TxC --> RTxCB comm
* out B-RTS~ --> SS comm
* in B-CTS~ --> CTS comm
* in B-DCD~ --> CD comm

---
MI zs has been fixed in this revision:
http://cvsweb.NetBSD.org/bsdweb.cgi/src/sys/dev/ic/z8530sc.c#rev1.17

---
Izumi Tsutsui

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