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Support for Botic Linux driver

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#983
Well, progress has been made, I get hiss out of the speaker test.

But, when trying to play a track via play ....

root@botic:~# play /data/remote/MUSIC_MY_CDS_DUBBED/Track01.wav
play FAIL formats: can't open output file `default': snd_pcm_open error: Device or resource busy
root@botic:~#


..also, when I open http://192.168.1.4:8080/#/0 ympd on a PC, I see the remote files, if I close ympd and then re open it the remote files don't show up.
..even when files show up and I select one to play the clock doesn't show that it's playing, stays at 0:00 ??
 
#984
What does priority mean in the audio_output section of mpd.conf

audio_output {
type "alsa"
name "Botic"
device "hw:0,0"
dsd_usb "no"
dsd_native "yes"
dsd_native_type "3"
priority "FIFO:32"
period_time "1"
mixer_type "software"

Still getting this error trying to play a file I copied from remote PC to /tmp/MUSIC1 on BBB

root@botic:/# play /tmp/MUSIC1/Track01.wav
play FAIL formats: can't open output file `default': snd_pcm_open error: Device or resource busy

Don't know how to discover why device is busy, even after checking other linux web sites for an answer. One suggestion was to use the command lsof, which doesn't appear to be on this version of debian.
 
Last edited:
#989
miero said:
[/code]Also botic v4/v5 has different audio output name:
Code: 
root@botic:~# aplay -l
**** List of PLAYBACK Hardware Devices ****
card 0: Botic [Botic], device 0: external dac-hifi-0 []
  Subdevices: 1/1
  Subdevice #0: subdevice #0
Click to expand...

Miero,
not sure if you mean I should change name in 'ALSA output' in 'mpd.conf'
from "Botic" to "dac-hifi-0" ?


Still searching web for solution to this, see below, problem is in MPD or ALSA or SOX ??

root@botic:/# play /data/remote/MUSIC_MY_CDS_DUBBED/Track01.wav

/data/remote/MUSIC_MY_CDS_DUBBED/Track01.wav:

File Size: 52.8M Bit Rate: 1.41M
Encoding: Signed PCM
Channels: 2 @ 16-bit
Samplerate: 44100Hz
Replaygain: off
Duration: 00:04:59.07

In:0.12% 00:00:00.37 [00:04:58.70] Out:12.3k [ -==|== ] Clip:0 play WARN alsa: Input/output error
play FAIL sox: `default' Device or resource busy: Operation not permitted
Done.
root@botic:/#
 
#995
miero said:
there is nothing interesting in the lsof... eh, what did you do to poor BBB? 🙂

please send me output of following commands:

aplay -l
aplay -v PATH_TO_YOUR_WAV_FILE
AUDIODEV=hw:0,0 play PATH_TO_YOUR_WAV_FILE

Also I do not like your earlier response:



is this still true?
Click to expand...

Last time I measured voltage I used one of the mounting holes for ground, this time I'm using one of the four pads surrounding the MClk pad, and measure 354mV.
Speaker check seems to be ok, I get hiss from L&R spkrs, when I control-C to exit test hiss stops.
 

Attachments

Last edited:
#997
miero said:
Any special settings of botic in kernel params or startup script? Because aplay shall play natively in 44100Hz. and not resample to 88200Hz... ?
Click to expand...

Not sure where startup script is, here is /boot/uEnv.txt

root@botic:/# ls boot
SOC.sh config-4.0.0-botic5 uEnv.txt
System.map-3.18.7-botic4 dtbs uboot
System.map-4.0.0-botic5 initrd.img-3.18.7-botic4 vmlinuz-3.18.7-botic4
config-3.18.7-botic4 initrd.img-4.0.0-botic5 vmlinuz-4.0.0-botic5
root@botic:/# cat /boot/uEnv.txt
#Docs: Beagleboard:U-boot partitioning layout 2.0 - eLinux.org

uname_r=4.0.0-botic5
#dtb=
cmdline=quiet init=/lib/systemd/systemd

##Example
#cape_disable=capemgr.disable_partno=
#cape_enable=capemgr.enable_partno=

##enable BBB: eMMC Flasher:
##make sure, these tools are installed: dosfstools rsync
#cmdline=init=/opt/scripts/tools/eMMC/init-eMMC-flasher-v3.sh

uuid=dd765012-0acc-4b80-a7b8-e100eb0bac8a
root@botic:/#


...and attached is /boot/config-4.0.0-botic5 hope that's what you need, I had to do mores and copy pastes into a file to get it all! I thought it would never ge to the end 🙄.
 

Attachments

#999
twluke said:
Maybe you need to try this one below.

Code: 
lsof | grep snd
Click to expand...


root@botic:~# lsof | grep snd
mpd 1061 mpd mem REG 179,2 289448 3780 /usr/lib/arm-linux-gnueabihf/libsndfile.so.1.0.25
mpd 1061 1187 mpd mem REG 179,2 289448 3780 /usr/lib/arm-linux-gnueabihf/libsndfile.so.1.0.25
mpd 1061 1188 mpd mem REG 179,2 289448 3780 /usr/lib/arm-linux-gnueabihf/libsndfile.so.1.0.25
mpd 1061 1189 mpd mem REG 179,2 289448 3780 /usr/lib/arm-linux-gnueabihf/libsndfile.so.1.0.25
mpd 1061 1190 mpd mem REG 179,2 289448 3780 /usr/lib/arm-linux-gnueabihf/libsndfile.so.1.0.25
root@botic:~#
 
#1,000
ichiban said:
root@botic:~# lsof | grep snd
mpd 1061 mpd mem REG 179,2 289448 3780 /usr/lib/arm-linux-gnueabihf/libsndfile.so.1.0.25
mpd 1061 1187 mpd mem REG 179,2 289448 3780 /usr/lib/arm-linux-gnueabihf/libsndfile.so.1.0.25
mpd 1061 1188 mpd mem REG 179,2 289448 3780 /usr/lib/arm-linux-gnueabihf/libsndfile.so.1.0.25
mpd 1061 1189 mpd mem REG 179,2 289448 3780 /usr/lib/arm-linux-gnueabihf/libsndfile.so.1.0.25
mpd 1061 1190 mpd mem REG 179,2 289448 3780 /usr/lib/arm-linux-gnueabihf/libsndfile.so.1.0.25
root@botic:~#
Click to expand...
So, it appears there is no busy device or resources other than mpd. How do you think, miero?
 
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