I now have all the info I need to get the Rear channel working.
I thank Voluspa for giving me ssh root access so that I could find out the details via trial and error.
But the summary is: -
This tells the emu10k1 chip which slots to fill on the AC-LINK between the emu10k1 and the stac9758.
snd_emu10k1_ptr_write(emu, AC97SLOT, 0, XXX);
Where XXX is: /* bit 0 is AC97SLOT_REAR_LEFT * bit 1 is AC97SLOT_REAR_RIGHT * bit 2 is Unknown, Maybe spdif. Not tested. * bit 3 is Unknown, Maybe spdif. Not tested. * bit 4 is AC97SLOT_CNTR * bit 5 is AC97SLOT_LFE */ So, for the stac9758, we would set XXX to 0x33
DSP code: - OP(icode, &ptr, iACC3, EXTOUT(13)... <- Rear Left OP(icode, &ptr, iACC3, EXTOUT(14)... <- Rear Right
Cheers James
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