Hi everybody I have some news : bad news but I was prepared to : as of now the alsa codec driver for STAC9271 is not complete : its ADAT output (vendor specific function) support is not complete. I tested with the ADAT output option Matthew Ranostay had added in a patch ( amixer sset 'IEC958 Playback Source' ADAT ) and also having changed the 0x21 pin default from 014521xx to 015521xx (4 being spdif out and 5 being digital out) : when doing so "alsactl restore" responded : unknown hardware HDAintel STAC ; hardware is initialized using a guess method (which is possibly normal ) In jack I only had 2 alsa outputs (allways using card0 device 1 : "STAC digital"). Maybe the problem is that ADATout Node 0x1F is not detailled enough in the driver ?
here is COMPLETE codec datasheet (page185 for 0x1F node ; page 155 for 0x21 digOUT node): http://pdf1.alldatasheet.com/datasheet-pdf/view/199321/IDT/STAC9271.html
here a alsa-info.sh of me (before changing to 015521xx pin config):
www.alsa-project.org/db/?f=297fa42ac3c439e3ca9336d1fa525a2cadabdae6
Hoping to get help to at least try to make it work : I bought intel DP35DP motherboard ONLY for the advertised "ADAToutput feature". Thanks a lot in advance, Eric
Hi Steven, I have studied the hd audio documents : Please make sure the pin default is actually 015521xx when in ADAT mode (instead of config default 014521xx ) .
Please copy me your alsainfo script if it still does not work.
Matthew Ranostay is right : really not much is missing or wrong for ADAT to work. Thanks everybody for future help, Eric
Tellman, Steven a écrit :
It doesn't work. The option comes up, but no dice. Doesn't lock to the receiver that has ADAT support.
Hello Eric, You should run the latest ALSA from the git tree because I added a codec specific SPDIF output control control for that chipset.
.... 417 static const char *stac927x_spdif_labels[5] = { 418 "Digital Playback", "ADAT", "Analog Mux 1", 419 "Analog Mux 2", "Analog Mux 3" 420 }; ....
I haven't tested ADAT output though but I have no reason to think it wouldn't work.
Thanks,
Matt Ranostay
Eric wrote:
In their handbook, motherboard intel DP35DP and others with STAC927x
(in
the codec datasheet also ADAT output is featured on older sigmatel STAC9271 and now IDT STAC9274 only) advertise ADAT output possible on their toslink. DP35DP and other intel boards are proven to have the ADAT output
working
under windows. Is it working in Alsa ? Many HTPC users would love that... I would !
Anybody from intel or IDT/sigmatel to confirm (by checking the
sigmatel
STAC927x hda codec driver) that it will work ? I want these intel motherboards only for this ADAT output feature and
I
am a linux only user so I would like to know before buying... I want to be sure someone would make the necessary changes to the hda sigmatel codec alsa driver so it would work. Thank you everybody
Is the ADAT output of the IDT (sigmatel) STAC927x HDA codec
supported in
alsa ? If not could someone please try to add this incredibly nice feature
in
the existing alsa driver ?
Do you have any HD-audio device with ADAT? IIRC, there is no specific verbs for ADAT on STAC927x... Takashi