scc(4) driver still used?

[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?

Erik <fa...@netbsd.org>

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[Izumi Tsutsui]

> 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It has been superseded by MI zs driver and children with wscons support.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