B3-audio

b3-audio-bits

‘# echo BB-BONE-AUDI-02 > /sys/devices/platform/bone_capemgr/slots ‘:

[1]
[   46.903955] bone_capemgr bone_capemgr: part_number 'BB-BONE-AUDI-02', version 'N/A'
[   46.912416] bone_capemgr bone_capemgr: slot #4: override
[   46.918398] bone_capemgr bone_capemgr: Using override eeprom data at slot 4
[   46.926104] bone_capemgr bone_capemgr: slot #4: 'Override Board Name,00A0,Override Manuf,BB-BONE-AUDI-02'
[   46.965598] bone_capemgr bone_capemgr: slot #4: dtbo 'BB-BONE-AUDI-02-00A0.dtbo' loaded; overlay id #0
root@arm:~# [   47.108500] davinci_evm ocp:sound: ASoC: CPU DAI (null) not registered
[   47.115662] davinci_evm ocp:sound: snd_soc_register_card failed (-517)
[   47.142836] 2-0018 supply IOVDD not found, using dummy regulator
[   47.150530] davinci_evm ocp:sound: ASoC: CODEC DAI tlv320aic3x-hifi not registered
[   47.158806] davinci_evm ocp:sound: snd_soc_register_card failed (-517)
[   47.172737] 2-0018 supply DVDD not found, using dummy regulator
[   47.179960] 2-0018 supply AVDD not found, using dummy regulator
[   47.187606] 2-0018 supply DRVDD not found, using dummy regulator
[   47.198660] davinci_evm ocp:sound: tlv320aic3x-hifi <-> 48038000.mcasp mapping ok

[2]
debian@arm:~$ aplay -l
**** List of PLAYBACK Hardware Devices ****
card 0: EVM [DA830 EVM], device 0: AIC3X tlv320aic3x-hifi-0 []
  Subdevices: 1/1
  Subdevice #0: subdevice #0

[3]
debian@arm:~$ aplay sine2s.wav
Playing WAVE 'sine2s.wav' : Signed 16 bit Little Endian, Rate 44100 Hz, Stereo
[  302.529567] davinci-mcasp 48038000.mcasp: Transmit buffer underflow
underrun!!! (at least 0.666 ms long)
[  302.540672] davinci-mcasp 48038000.mcasp: Transmit buffer underflow
underrun!!! (at least 5.958 ms long)
[  302.556621] davinci-mcasp 48038000.mcasp: Transmit buffer underflow
underrun!!! (at least 0.216 ms long)
[  302.567236] davinci-mcasp 48038000.mcasp: Transmit buffer underflow

root@arm:~# i2cdump 2 0x18
No size specified (using byte-data access)
     0  1  2  3  4  5  6  7  8  9  a  b  c  d  e  f    0123456789abcdef
00: 00 00 00 10 04 00 00 00 00 00 00 01 00 00 00 80    ...??......?...?
10: 80 ff ff 78 78 78 78 78 78 06 00 fe 00 00 fe 00    ?..xxxxxx?.?..?.
20: 00 00 00 00 22 00 00 00 00 00 00 80 80 00 00 00    ...."......??...
30: 00 00 00 04 00 00 00 00 00 00 04 00 00 00 00 00    ...?......?.....
40: 00 04 00 00 00 00 00 00 04 00 00 00 00 00 00 00    .?......?.......
50: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00    ................
60: 00 03 00 00 00 00 02 00 00 00 00 00 00 00 00 00    .?....?.........
70: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00    ................
80: 00 00 00 10 04 00 00 00 00 00 00 01 00 00 00 80    ...??......?...?
90: 80 ff ff 78 78 78 78 78 78 06 00 fe 00 00 fe 00    ?..xxxxxx?.?..?.
a0: 00 00 00 00 22 00 00 00 00 00 00 80 80 00 00 00    ...."......??...
b0: 00 00 00 04 00 00 00 00 00 00 04 00 00 00 00 00    ...?......?.....
c0: 00 04 00 00 00 00 00 00 04 00 00 00 00 00 00 00    .?......?.......
d0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00    ................
e0: 00 03 00 00 00 00 02 00 00 00 00 00 00 00 00 00    .?....?.........
f0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00    ................