Thread: The N9/N950 Kernel Upstreaming Force
View Single Post
filip.pz's Avatar
filip.pz is offline filip.pz
2015-12-24 , 16:22
Posts: 108 | Thanked: 579 times | Joined on Feb 2013 @ Požega, Croatia
#112
Christmas progress update:

Audio parts now work (for the most part at least). N9/N950 use quite complex setup consisting of TWL4030, TLV320DAC33 and WL1273 codecs. TWL4030 is used as main audio chip, paired with TLV320DAC33 for handsfree and headphones output (for better sound quality I suppose). TPA6140A2 (headphones amplifier) is connected to TLV320DAC33, and in the end WL1273 is used for FM radio and bluetooth connectivity.

I've used following script (test-sound.sh) to test TWL4030/TLV320DAC33 in Nemomobile:
Code:
#!/bin/sh

echo "Test earpiece"
pactl set-sink-port sink.hw0 nokia-n950-twl4030-output-earpiece
/usr/bin/paplay -v --device=sink.hw0 /usr/share/sounds/alsa/Noise.wav

echo "Test speaker"
pactl set-sink-port sink.hw0 nokia-n950-twl4030-output-ihf
/usr/bin/paplay -v --device=sink.hw0 /usr/share/sounds/alsa/Noise.wav

echo "Test headphone"
/usr/bin/paplay -v --device=sink.headphone /usr/share/sounds/alsa/Noise.wav

echo "Test TWL4030 -> TLV320DAC33 passthrough"
#set TWL4030 to headset-call port which forwards output to TLV320DAC33
pactl set-sink-port sink.hw0 nokia-n950-twl4030-output-headset-call
#set TLV320DAC33 to passthrough profile to accept input from TWL4030
pactl set-card-profile dac33 passthrough
#play something to TWL4030 and see if it goes throught TLV320DAC33 to headphones
/usr/bin/paplay -v --device=sink.hw0 /usr/share/sounds/alsa/Noise.wav
pactl set-card-profile dac33 normal
We still need jack detection logic (if something is plugged into 3.5mm jack and what). After that I'm after ACI/ECI driver (support for input from wired earphones with music controls: play, pause, etc.)

Patches file (https://www.dropbox.com/s/ogx2nbzoxf...x.tar.bz2?dl=1) has been updated to latest patch set.

In the end, let me wish all of you a Merry Xmas and a Happy New Year
Last edited by filip.pz; 2015-12-25 at 13:48. Reason: extended test procedure to twl4030->tlv320dac33 passtrough
 

The Following 23 Users Say Thank You to filip.pz For This Useful Post: