[Fwd: Re: [linux-audio-user] DSP2000 C-PORT and MIDI input]

[Fwd: Re: [linux-audio-user] DSP2000 C-PORT and MIDI input]

[Lukas Degener]

Hi everybody and sorry for posting this to both, lad and alsa-dev,
i was not sure which one fits better.

Concerning the issue with non-functional midi in on the DSP2000 c-port:
Someone on lau(Clemens?) said the problem is a lack of information an 
how to enable some interrupts.
Matthew Skinner contacted me a couple of days ago (actualy replying to a 
thread on lau, i think), offereing to provide the missing info + 
additional help.

Anyone interested and able to do the required changes should contact 
him: matt-h1laINijYsWj7JPsHwAtPg@public.gmane.org

the original "dialog" is attached below. I'm sorry, it is a little 
cluttered by my mail client :-) hope you can read it anyway.

Kind Regards,
Lukas


----- Original Message ----- 
From: "Lukas Degener" <AFBLukas-Mmb7MZpHnFY@public.gmane.org>
To: "Matthew Skinner, Sound and Music Tech Support" <matt-h1laINijYsWj7JPsHwAtPg@public.gmane.org>
Sent: Saturday, April 24, 2004 5:50 AM
Subject: Re: [linux-audio-user] DSP2000 C-PORT and MIDI input


> Matthew Skinner, Sound and Music Tech Support wrote:
>
> > If you can program in c++ and want to get the midi io working on the
> > cport then let me know what you need.
>
> I doubt my programming skills are sufficient to perform ad-hoc
> modifications on the alsa driver layer, at least not without a
> exorbitant amount of spare time, which i currently heavily lack :-)
>
> As for what is needed/missing: As Clemens said on lau:
>
> > Currently, this bug cannot be fixed because nobody knows how to enable
> > MIDI interrupts on this card.
>
> I'm not familiar with driver programming, so i can only vaguely guess,
> that there is a lack of specifications on certain parts of the c-port
> hardware.
> If you can provide this information, i imagine the alsa developers would
> much apreciate it. It would propably make sense to post your offer on
> one of their mailing lists.
>
> Kind regards,
> Lukas
>
>
I dont know the best mailinglist to post to or I probably would do so. I can
provide the missing information and some more help.

If you want to find someone with the time, knowledge and passion to write
the extra code for linux then get them to contact myself.

Regards,

Matthew Skinner
Sound and Music Technical Support

Re: [linux-audio-dev] [Fwd: Re: [linux-audio-user] DSP2000 C-PORT and MIDI input]

[Jan Depner]

Lukas,

	I have tons of C programming experience and a little C++.  I also have
a DSP2000 C-Port.  Unfortunately I don't have any MIDI devices or know
anything about MIDI.  Is there anything I can do to help?

Jan


On Mon, 2004-04-26 at 04:40, Lukas Degener wrote:
> Hi everybody and sorry for posting this to both, lad and alsa-dev,
> i was not sure which one fits better.
> 
> Concerning the issue with non-functional midi in on the DSP2000 c-port:
> Someone on lau(Clemens?) said the problem is a lack of information an 
> how to enable some interrupts.
> Matthew Skinner contacted me a couple of days ago (actualy replying to a 
> thread on lau, i think), offereing to provide the missing info + 
> additional help.
> 
> Anyone interested and able to do the required changes should contact 
> him: matt@sound-music.com
> 
> the original "dialog" is attached below. I'm sorry, it is a little 
> cluttered by my mail client :-) hope you can read it anyway.
> 
> Kind Regards,
> Lukas
> 
> 
> ----- Original Message ----- 
> From: "Lukas Degener" <AFBLukas@gmx.de>
> To: "Matthew Skinner, Sound and Music Tech Support" <matt@sound-music.com>
> Sent: Saturday, April 24, 2004 5:50 AM
> Subject: Re: [linux-audio-user] DSP2000 C-PORT and MIDI input
> 
> 
> > Matthew Skinner, Sound and Music Tech Support wrote:
> >
> > > If you can program in c++ and want to get the midi io working on the
> > > cport then let me know what you need.
> >
> > I doubt my programming skills are sufficient to perform ad-hoc
> > modifications on the alsa driver layer, at least not without a
> > exorbitant amount of spare time, which i currently heavily lack :-)
> >
> > As for what is needed/missing: As Clemens said on lau:
> >
> > > Currently, this bug cannot be fixed because nobody knows how to enable
> > > MIDI interrupts on this card.
> >
> > I'm not familiar with driver programming, so i can only vaguely guess,
> > that there is a lack of specifications on certain parts of the c-port
> > hardware.
> > If you can provide this information, i imagine the alsa developers would
> > much apreciate it. It would propably make sense to post your offer on
> > one of their mailing lists.
> >
> > Kind regards,
> > Lukas
> >
> >
> I dont know the best mailinglist to post to or I probably would do so. I can
> provide the missing information and some more help.
> 
> If you want to find someone with the time, knowledge and passion to write
> the extra code for linux then get them to contact myself.
> 
> Regards,
> 
> Matthew Skinner
> Sound and Music Technical Support
> 
> 




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Re: [Alsa-devel] DSP2000 C-PORT and MIDI input

[Clemens Ladisch]

Lukas Degener wrote:
> Hi everybody and sorry for posting this to both, lad and alsa-dev,
> i was not sure which one fits better.

alsa-devel would be appropriate, but non-subscribers cannot post
there, so I'm keeping linux-audio-dev in the CCs.

> Concerning the issue with non-functional midi in on the DSP2000 c-port:
> Someone on lau(Clemens?) said the problem is a lack of information an
> how to enable some interrupts.

>From what I've heard, interrupts just don't happen.  The MIDI receiver
is part of the ICE1712 chip, so, apparently, the MIDI input isn't
enabled or in power saving mode or something like that.

MIDI input works with this driver on ICE1712-based cards from other
vendors, so this seems to be some Hoontech-specific configuration
issue.

> > Matthew Skinner, Sound and Music Tech Support wrote:
> >
> > > If you can program in c++ and want to get the midi io working
> > > on the cport then let me know what you need.

I need to know how exactly the box configuration registers(?) are to
be initialized for DSP* cards.  The driver currently fiddles with
three bits named MIDIIN, MIDI1, and MIDI2, but their function seems to
be more complex than the names imply.

And the driver doesn't actually know about the C-Port.  There are two
known EEPROM subdevice IDs: 0x1712/0x1412 for the DSP24, and
0x1712/0x1416 for the Media7.1.  I guess the C-Port uses one of these
IDs?  (Otherwise, this would explain why the C-Port isn't initialized
completely.)


Regards,
Clemens