Am Mi 11. Juni 2008 schrieb Mike Montour: > For example, consider the controls called "Headphone" and "Speaker". > Neither label is correct for the GTA01 - "Headphone" is actually > LOUT1/ROUT1 and controls all audio from the WM8753 to the LM4857 chip, > while "Speaker" is LOUT2/ROUT2 and is N/C.
LOUT2/ROUT2 is handset earpiece (aka receiver). LOUT1/ROUT1 is routing to external amp, which there is switching between headset-stereo and device-speaker-mono(GTA02)/stereo(GTA01) via cpu-GPIO[HP_IN]. (what also is a function I expect to see in alsa-driver of our "OEM-card", but surely NOT in WM8753-alsa-driver) NC: OUT3 OUT4 MONO1, MONO2: differential output routing to mic analog in of GSM and while I'm writing... MIC2,MIC2N: diff. input from handset mic MIC1,MIC1N: "differential" Input from headset (ring3 jack, MIC1N:GND via 100N) RXP,RXN: diff. input from GSM analog "earpiece" output ACOP->AIN via 100N LINE1, LINE2: to testpoint H-TP3001/2, NC VXD: digital PCM to BT (mono only?) DACDAT, ADCDAT: to cpu via IIS HTH /jOERG
signature.asc
Description: This is a digitally signed message part.
