I am using a slightly modified version of the 88pm860x-codec.c driver from 3.x in an android modified 2.6.35 kernel.
I have had to make some changes to allow both capture and playback work on the same (I2S) interface, but so far things are working.
I am however having some problems getting the DAPM framework to set the correct switches needed to get the complete route to actually start.
What would be needed to get this working as it should? I can post or send the driver on request, but basically the same question rises for the current driver in the 3.x kernel.
I want/need to go from HS1/HS2 to DIN for playback, and from MIC1 to DOUT for capture. In order to do that, I have to set the following switches:
amixer -q sset 'DAC HS1 Mux' 'Right' amixer -q sset 'DAC HS2 Mux' 'Left' amixer -q sset 'I2S Mic Mux' 'ADC' amixer -q sset 'ADC Left Mux' 'ADCL'
I would like to make this automatic, but I am unsure how to express this in my dapm routing table.
Note that in order to be able to use playback and capture independently on the I2S interface (within reason, it is not possible to use a different rate for instance), I had to add a SUPPLY control to the dapm widgets that turns on the I2S clock when needed.
Any help, hints or pointers to the right manual to read would be appreciated.
Bas Vermeulen