User talk:Gabrys
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Testing GSM <-> BT
Basics: We need to tell audio codec to route sound from GSM chip to BT chip. Codec is controlled by ALSA and mixer settings.
Prerequisites: BT device must be paired before the operation.
Step one: powering on bluetooth, setting up bluetoothd, pairing
Set /etc/bluetooth/audio.conf like this:
# SCO routing. Either PCM or HCI (in which case audio is routed to/from ALSA) # Defaults to HCI SCORouting=PCM
Then
echo 1 > /sys/bus/platform/devices/neo1973-pm-bt.0/power_on hciconfig hci0 up bluetoothd
then use simple-agent from here: http://wiki.openmoko.org/wiki/Manually_using_Bluetooth#Pair to pair the device.
Test: "hcitool con" should say:
Connection ACL 00:13:17:78:7B:A3 handle 0 state 5 lm MASTER
Step two: make a call
Call to the phone and answer (or place a call, whichever is cheaper).
Step three: load ALSA settings to switch codec "mode" to GSM <=> BT
Wait till frameworkd sets its statefile and then overwrite it with your own:
alsamixer restore /path/to/the/statefile
(Find working statefile first)
Then due to kernel bug, do:
amixer sset "Capture Left Mixer" "Analogue Mix Right" amixer sset "Capture Left Mixer" "Analogue Mix Left"
Then issue dbus call (check what it is exactly):
org.bluez.Headset Play()
We would also need to set bluetooth IIS to 8000 rate (probably left by now).
We should hear something in the BT headset and not in phone's speaker.