Re: MI com(4) committed

On Nov 12, 2003, at 5:22 AM, Izumi Tsutsui wrote:

> In article <[email protected]>
> [email protected] wrote:
>
>> I personally like what the Alpha port does here, /dev/ttyC[0-n] for
>> com(4).
>
> Sound good. Then how about the following changes?
>
> - Prepare ttyC[0123] for com(4)
> - Add "com0 at dio? scode 9" in kernel config files
>   (so that major 12, minor 0 is always used for DCA
>    and  minor 1 and later nodes are be assigned to APCI.)
> - Create following symlinks:
>   tty0  -> ttyC0
>   ttya0 -> ttyC1
>   ttya1 -> ttyC2
>   ttya2 -> ttyC3

That sounds good.  We'll leave the symlinks for one major release, and  
then remove them.  We should put info in the release notes about that.

>> Perhaps you could add some text to the hp300-specific section of the
>> release notes noting the major change for the APCI serial ports, and
>> the name change in general?
>
> Sure, but I have no idea what should "md_update()" function
> in sysinst do to handle it..

Maybe David Laight has some ideas...

>> Perhaps we should rename the DCM serial ports to /dev/ttyM[0-n]?
>
> It's a good idea to prevent confusion of MI tty0? names.
> Maybe the following symlinks are also needed:
>   tty00 -> ttyM0
>   tty01 -> ttyM1
>   tty02 -> ttyM2
>   tty03 -> ttyM3

Sounds good.  Also just for one major release.

>
>> Do
>> you have a DCM card?  Would you like one?
>
> I don't have DCM. My HP382 (what was picked up from dump) is the
> only hp300 machine I have :-) If DCM just works with -current dcm.c
> and few cleanups are needed, it should belong to the portmaster :-)

Yah, sigh.  Unfortunately, I've been trying to give up the  
maintainership of port-hp300 for a few years now (I have little time to  
even power on my hp300s, let alone hack on them).  Are you interested  
in taking over?

>> I could probably send you a
>> DCL card, as well (we don't even have a driver for that one yet :-)
>
> Hmm, 1.6.1 install note
> ftp://ftp.netbsd.org/pub/NetBSD/NetBSD-1.6.1/hp300/ 
> INSTALL.html#Supported%20hardware
> says DCL is supported, but is it reaaly different from DCA or DCM?
> Could some MI driver be used for it?

The DCL has never been supported by NetBSD.  I don't know if it's  
similar to any other serial chip that we currently support.  I'd have  
to dig out a board and look.  I also have an old source code listing  
for the 4.3BSD driver.

         -- Jason R. Thorpe <[email protected]>