Re: [FFADO-user] Questions about Alesis IO14

[Stefan R. <st...@s5...>]

Luis Pablo Gasparotto wrote:
[...]
> [luispa@LPGDELL ~]$ sudo rmmod ohci1394
> [luispa@LPGDELL ~]$ sudo rmmod raw1394
> [luispa@LPGDELL ~]$ sudo modprobe raw1394
> [luispa@LPGDELL ~]$ sudo modprobe ohci1394
> [luispa@LPGDELL ~]$ ffado-test ListDevices
> -----------------------------------------------
> FFADO test and diagnostic utility
> Part of the FFADO project -- www.ffado.org
> Version: 2.999.0-1881
> (C) 2008, Daniel Wagner, Pieter Palmers
> This program comes with ABSOLUTELY NO WARRANTY.
> -----------------------------------------------
> 
> === 1394 PORT 0 ===
>   Node id  GUID                  VendorId     ModelId   Vendor - Model
>    0       0x000595040040045a  0x00000595  0x00000001   Alesis -
>    1       0x394fc00030c15e01  0x00394FC0  0x00000000   Linux - ohci1394  -
> no message buffer overruns
> [luispa@LPGDELL ~]$ ffado-test ListDevices
> -----------------------------------------------
> FFADO test and diagnostic utility
> Part of the FFADO project -- www.ffado.org
> Version: 2.999.0-1881
> (C) 2008, Daniel Wagner, Pieter Palmers
> This program comes with ABSOLUTELY NO WARRANTY.
> -----------------------------------------------
> 
> === 1394 PORT 0 ===
>   Node id  GUID                  VendorId     ModelId   Vendor - Model
> 02345351508: Error (configrom.cpp)[ 150] initialize: Could not parse config rom 
> of node 0 on port 0
> no message buffer overruns

Oh, this answers my question from the other post whether "ffado-test
ListDevices" succeeds when repeated.

Since this fails without any isochronous I/O setup in the picture, it means
that this is not an issue with potential iso DMA uni bugs in the Ricoh controller.

Maybe the csr->max_rom = 4; modification that I suggested in the other post
brings us somewhere.  Before your very first and successful run of "ffado-test
ListDevices", the ieee1394 driver already read the Config ROM but only with
quadlet reads.  Then there is the successful ffado-test run that involved
quadlet reads and 64 bytes sized reads.  And then any repetition of that
obviously fails...

But as I said, there are other FFADO users with Alesis iO|14 without this
problem.  Hence a bad interaction with the Ricoh controller is not entirely
ruled out as the error source yet --- if it does not turn out to be just a
flaw with your particular version of the iO|14 firmware.
-- 
Stefan Richter
-=====-==-=- =--- ==-==
http://arcgraph.de/sr/