Re: [hatari-devel] SCC-B support

[Eero Tamminen <oak@xxxxxxxxxxxxxx>]

Hi,

On 12/29/18 8:50 AM, Thomas Huth wrote:
> Am Fri, 28 Dec 2018 23:10:40 +0200
> schrieb Eero Tamminen <oak@xxxxxxxxxxxxxx>:
> > I've tried the Hatari SCC-B support a bit when testing EmuTOS
> > serial output support.
> >
> > Some comments:
> > * SCC-B doesn't have separate files for input and output like
> >     normal MFP serial does (in case they're unidirectional pipes)
> > * Unlike MFP serial, SCC serial doesn't create the output file,
> >     instead it fails if it doesn't already exist
>
> Well, yes, that code from Aranym was only meant to be used with
> real /dev/ttyS* devices, not with normal files or pipes. I only added
> some hack so far that it is possible to open normal files for output,
> so it is usable with the "make test" regression tester, too...
> But I agree with you, this should eventually become similar
> to --rs232-out/in and --midi-out/in, too. I'll see what I can do...
> >> * Although SCC-B is TT / Falcon specific, it gets still
> >     initialized for other machine types
>
> That should be easy to fix... I pushed a patch now.

Verified.


If I've understood correctly:
* ST / MegaST / STE: 1 MFP serial port
* MegaSTE & TT: 1 MFP, 2x SCC serial ports
* Falcon: 2 SCC serial ports

So I guess we need something like following:
  --rs232-in <file>  Enable MFP serial port, use <file> as input device 
(not Falcon)
  --rs232-out <file> Enable MFP serial port, use <file> as output 
device (not Falcon)
  --scc-a-in <file>     Enable SCC channel A port, use <file> as input 
device (not ST/STE)
  --scc-a-out <file>     Enable SCC channel A port, use <file> as 
output device (not ST/STE)
  --scc-b-in <file>     Enable SCC channel B port, use <file> as input 
device (not ST/STE)
  --scc-b-out <file>     Enable SCC channel B port, use <file> as 
output device (not ST/STE)

?

(And something similar in SDL GUI.)


	- Eero