[alsa-devel] [FFADO-user] Toneweal / Trigaudio FW66 device

[Daniel Jozsef]

Hello,

Thanks for the quick reaction, Takashi :) I ran the command you mentioned,
and your guess was spot on:

daniel at gibbonmoon:~/opt/linux-firewire-utils-0.4/src$ ./firewire-request
/dev/fw1 read 0xffffc8020000 60
result: 000: 62 72 69 64 67 65 43 6f 03 00 00 00 00 00 00 00
bridgeCo........
result: 010: 00 27 23 00 00 00 00 02 02 00 00 00 00 00 00 00
.'#.............
result: 020: 32 30 31 30 30 35 32 35 31 32 31 35 30 34 20 20 20100525121504

result: 030: 02 00 02 00 ff ff ff 00 80 00 0c 40 7c e3 13 00
...........@|...
result: 040: 32 30 30 38 31 32 30 32 31 33 34 34 34 38 20 20 20081202134448

result: 050: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
................

Daniel

On Sun, Jan 19, 2020 at 4:43 PM Takashi Sakamoto <o-takashi at sakamocchi.jp>
wrote:

> Hi,
>
> I'm an author of ALSA bebob driver (snd-bebob).
>
> On Sun, Jan 19, 2020 at 03:01:00PM +0100, Daniel Jozsef wrote:
> > It's a Toneweal FW66, a 6x6 in/out 24bit 96kHz audio interface with
> MIDI. I
> > kinda like it for its build quality and the time I spent with it. :D The
> > largest chip in the device is labeled Trigaudio MNP-TA110. I searched for
> > information on this device, and found very little - it's a Taiwanese
> > company. There seems evidence that a "Trigaudio FW66" also exists, so the
> > device may have been sold under different brands in different markets.
>
> In my opinion, FW66 is an application of ArchWave BeBoB solution for
> audio and music units on IEEE 1394 bus (ArchWave is formerly known as
> BridgeCo) since I can find file structure for the solution in driver
> package shipped by the vendor. I guess that you can see large ASIC
> labelled with 'BridgeCo' (or 'ArchWave') DM1000/1100/1500 inner the
> device. If so, the device is possibly handled by implementation of FFADO.
>
> But as a quick glance to your log, the implementation of FFADO fails to
> detect it:
>
> > daniel at gibbonmoon:~$ sudo ffado-test Discover
> > ...
> > 02878614308: Warning (bebob_avdevice.cpp)[ 228] discover: Using generic
> BeBoB support for unsupported device 'ToneWeal FW66'
> > 02878620133: Debug (bebob_avdevice_subunit.cpp)[  83] discover:
> Discovering BeBoB::AudioSubunit...
> > 02878620175: Debug (avc_audiosubunit.cpp)[  56] discover: Discovering
> BeBoB::AudioSubunit...
> > 02878620196: Debug (avc_subunit.cpp)[ 108] discoverPlugs: Discovering
> plugs...
> > 02878778208: Error (bebob_avplug.cpp)[ 237] discoverPlugType: Plug does
> not implement extended plug info plug type info command
> > 02878778236: Error (bebob_avplug.cpp)[ 120] discover: discover: Could
> not discover plug type (1,1,0,0,1)
> > 02878778272: Error (avc_subunit.cpp)[ 189] discoverPlugs: plug discover
> failed
> > 02878778283: Error (avc_subunit.cpp)[ 131] discoverPlugs: destination
> plug discovering failed
> > 02878778301: Error (avc_subunit.cpp)[  99] discover: plug discovery
> failed
> > 02878778312: Error (avc_unit.cpp)[ 283] enumerateSubUnits:
> enumerateSubUnits: Could not discover subunit_id =  0, subunit_type =  1
> (Audio)
> > 02878778335: Error (avc_unit.cpp)[ 177] discover: Could not enumerate
> sub units
> > 02878778347: Error (bebob_avdevice.cpp)[ 232] discover: Could not
> discover unit
> > 02878778376: Error (devicemanager.cpp)[ 628] discover: could not
> discover device
> > 02878778419: Debug (devicemanager.cpp)[ 661] discover: Discovery
> finished...
> ...
>
> The reason is the unit returns NOT_IMPLEMENTED response against vendor
> specific AV/C command (Extended Plug Information command defined by
> BridgeCo.) for Audio subunit. I guess that the device has no Audio
> subunit but the implementation performs to use it without checking
> available subunits.
>
>
> For my information, would you please clone linux-firewire-utils[1] into
> your system and build it, then run below command to dump device
> information:
>
> $ ./firewire-request /dev/fw1 read 0xffffc8020000 60
> result: 000: 62 72 69 64 67 65 43 6f 03 00 00 00 00 00 00 00
> bridgeCo........
> result: 010: 00 96 14 00 22 03 00 00 19 00 00 00 00 00 00 00
> ...."...........
> result: 020: 32 30 30 39 30 36 30 39 31 36 32 39 34 30 20 20 20090609162940
> result: 030: 00 00 00 19 07 1f 00 00 80 00 0c 40 70 35 14 00
> ........... at p5..
> result: 040: 32 30 30 39 30 36 30 39 31 36 32 32 31 39 20 20 20090609162219
> result: 050: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
> ................
>
> The above is a sample of Phonic Firefly 202. I expect the first line
> includes bytes represent 'bridgeCo'.
>
> [1] https://github.com/cladisch/linux-firewire-utils
>
>
> Regards
>
> Takashi Sakamoto
>