Hi Again, Sorry to keep on this, but I'm really wedged. I can't tell if I'm trying to break new ground, or if I just don't know what I'm doing :-) Or both perhaps.
I've got my multi-codec card instantiating (only 4 codecs here for simplicity -- there are really 8 total)
# insmod tlv320aic3x_se.ko # <--- my custom version of aic3x driver. # insmod puppy_machine.ko # <-- my custom machinne interface with all my dai-links and all.
# aplay -l **** List of PLAYBACK Hardware Devices **** card 0: tlv320aic33se [tlv320aic33-se], device 0: tlv320aic33-se tlv320aic3x-se-hifi-0 [] Subdevices: 0/1 Subdevice #0: subdevice #0 card 0: tlv320aic33se [tlv320aic33-se], device 1: tlv320aic33-se tlv320aic3x-se-hifi-1 [] Subdevices: 1/1 Subdevice #0: subdevice #0 card 0: tlv320aic33se [tlv320aic33-se], device 2: tlv320aic33-se tlv320aic3x-se-hifi-2 [] Subdevices: 1/1 Subdevice #0: subdevice #0 card 0: tlv320aic33se [tlv320aic33-se], device 3: tlv320aic33-se tlv320aic3x-se-hifi-3 [] Subdevices: 1/1 Subdevice #0: subdevice #0
I can run jack on the first subdevice and it actually streams data both ways on codec 0.
# jackd -d alsa -d hw:0,0 creating alsa driver ... hw:0,0|hw:0,0|1024|2|48000|0|0|nomon|swmeter|-|32bit control device hw:0 ...
However, I can't seem to get access to any of the other codecs on the TDM bus. Remember, there is only a single CPU DAI here (a single McBSP port), but multiple codec DAIs (one for each codec, in TDM mode).
# jackd -d alsa -d hw:0,0 -i4 -o4 # <--- Does not work. hw:0,0 is just a single stereo codec, so it doesn't start up the other DAIs
How do I get jackd (or anything else for that matter), to start all the DAIs at the same time?
If I try: # aplay -D hw:0,0 -f S16_LE test.wav # <--- success
and in another shell: # aplay -D hw:0,1 -f S16_LE test1.wav # <--- failure
the second invocation on hw:0,1 fails because hw:0 is already open.
I also tried modifying my asoundrc to something similar to http://quicktoots.linuxaudio.org/toots/el-cheapo, but that didn't work either.
I can attach my code and even schematic if that would help.
Thanks again, -Caleb