From mboxrd@z Thu Jan  1 00:00:00 1970
Message-ID: <137ab332a0f637499e1d565f95b69182@plan9.bell-labs.com>
From: Peter Bosch <pb@research.bell-labs.com>
To: 9fans@cse.psu.edu
Subject: Re: [9fans] devtv.c
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Date: Thu,  6 Jun 2002 09:47:42 -0400
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devtv.c is ongoing work.  One of the miros is supported and
I'm currently working on the Hauppauge WinTV PVR.

In both cases video just works fine and data can be rendered
in a Plan 9 window.  I'll be posting the user utilities in
due time.

Audio is difficult.  On the miro, the audio signal is simply
patched through to audio out on the back of the back.  On the
PVR, one should be able to DMA audio over the PCI bus, but to
date I have not able to do so.  It appears (and please correct
me if I'm wrong) that the MSP34000 (the audio processor) is not
directly connected to the Bt878 on the card, but instead is
connected to one of the FPGAs on the board -- for instance,
the MSP only works (i.e. has power) when one of the FPGAs is
initialized.  So, I've programmed the MSP to deliver its audio
to the output port on the back as well.

peter.