Hi Daniel,
On Tue, Mar 05, 2013 at 21:31:59, Daniel Mack wrote: [...]
As Michal described, we used a board with a multichannel Codec on it, which connects 3 of its I2S inputs to the AM33xx's AXR data lines.
Software wise, we tested with 'aplay -cX', and that seems to work just fine.
Since you are using a multichannel codec things are a lot simplified for you :) Someone might want to hook up multiple codecs to get multi-channel behavior. There will be only 1 CPU DAI but there can be upto 16 CODEC DAIs operating in sync. I haven't really followed the recent ASoC changes so I don't know whether something like this can be handled right now.
Mark, Liam,
Any suggestions?
[...]
return 0; @@ -936,13 +978,13 @@ static struct snd_soc_dai_driver davinci_mcasp_dai[] = { .name = "davinci-mcasp.0", .playback = { .channels_min = 2,
.channels_max = 2,
.channels_max = 8,Why are you setting this to 8?
Well, the ASoC core will look at this field when parsing the dai links, and will build a sound card that has min(codec_dai->channels_max, cpu_dai->channels_max) channels. Hence, this number has to reflect the maximum possible output channels for this DAI. In v3, it's actually set to 512. Or was that not your question?
32 slots on a max of 16 serializers gives the max as 512 and hence I wanted to know why 8 was selected.
Regards, Vaibhav