Hello.
I have weird stuff going. I built android (1.5 i believe) with ALSA.
If I use this kernel with normal filesystem(so that Android does not
take over sound device), I can run aplay and play wavs. But when
Android loads, media service dies repetitively. From time to time i
can hear weird blips. I am kinda stuck, as I cannot figure out what is
the problem and how to fix it. Any help appreciated.
Here's a piece of log:
I/ActivityManager( 627): Stopping service:
com.android.providers.media/.MediaScannerService
D/InputManagerService( 627): hide the small icon for the input method
I/ARMAssembler( 627): generated
scanline__00000077:03515104_00000001_00000000 [ 46 ipp] (65 ins) at
[0x16c668:0x16c76c] in 244141 ns
I/DEBUG ( 572): *** *** *** *** *** *** *** *** *** *** *** *** ***
*** *** ***
I/DEBUG ( 572): Build fingerprint: 'generic/generic/generic/:1.5/
MAIN/eng.kai.20090210.042022:eng/test-keys'
I/DEBUG ( 572): pid: 575, tid: 592 >>> /system/bin/mediaserver <<<
I/DEBUG ( 572): signal 11 (SIGSEGV), fault addr 0002c000
I/DEBUG ( 572): r0 00000000 r1 4020adb8 r2 00000000 r3 00000000
I/DEBUG ( 572): r4 0002c004 r5 4020ad40 r6 00000000 r7 00000001
I/DEBUG ( 572): r8 0001e490 r9 0001e4c8 10 00000007 fp 00000000
I/DEBUG ( 572): ip 00007fff sp 4020ad08 lr 00000000 pc
ab00c36c cpsr 80000010
I/DEBUG ( 572): #00 pc 0000c36c /system/lib/
libaudioflinger.so
I/DEBUG ( 572): #01 pc 0000c6a4 /system/lib/
libaudioflinger.so
I/DEBUG ( 572): #02 pc 0000c058 /system/lib/
libaudioflinger.so
I/DEBUG ( 572): #03 pc 00013df6 /system/lib/
libaudioflinger.so
I/DEBUG ( 572): #04 pc 00028a20 /system/lib/libutils.so
I/DEBUG ( 572): #05 pc 000287fc /system/lib/libutils.so
I/DEBUG ( 572): #06 pc 0000f96c /system/lib/libc.so
I/DEBUG ( 572): #07 pc 0000f4e0 /system/lib/libc.so
I/DEBUG ( 572): stack:
I/DEBUG ( 572): 4020acc8 00000000
I/DEBUG ( 572): 4020accc a9d2841b /system/lib/libutils.so
I/DEBUG ( 572): 4020acd0 00022da0 [heap]
I/DEBUG ( 572): 4020acd4 4050b000
I/DEBUG ( 572): 4020acd8 00022da0 [heap]
I/DEBUG ( 572): 4020acdc ab010c09 /system/lib/
libaudioflinger.so
I/DEBUG ( 572): 4020ace0 00022dd9 [heap]
I/DEBUG ( 572): 4020ace4 ab010cb1 /system/lib/
libaudioflinger.so
/DEBUG ( 572): 4020ad54 00000000
I/DEBUG ( 572): 4020adb4 00000010
[...]
I/DEBUG ( 572): 4020adb8 00000000
I/DEBUG ( 572): 4020adbc 00000000
I/DEBUG ( 572): 4020adc0 0001e490 [heap]
I/DEBUG ( 572): 4020adc4 000002cc
I/DEBUG ( 572): 4020adc8 00000001
I/DEBUG ( 572): 4020adcc 00000000
I/DEBUG ( 572): 4020add0 ab017c08
I/DEBUG ( 572): 4020add4 ab00c6a8 /system/lib/
libaudioflinger.so
I/DEBUG ( 572): #01 4020add8 00002d8c
I/DEBUG ( 572): 4020addc 00021880 [heap]
I/DEBUG ( 572): 4020ade0 00000001
I/DEBUG ( 572): 4020ade4 00000000
I/DEBUG ( 572): 4020ade8 00000000
I/DEBUG ( 572): 4020adec 00000000
I/DEBUG ( 572): 4020adf0 00022df8 [heap]
I/DEBUG ( 572): 4020adf4 00000082
I/DEBUG ( 572): 4020adf8 00000001
I/DEBUG ( 572): 4020adfc 00000001
I/DEBUG ( 572): 4020ae00 0000ad1c [heap]
I/DEBUG ( 572): 4020ae04 bec3ab14 [stack]
I/DEBUG ( 572): 4020ae08 afe37dd0
I/DEBUG ( 572): 4020ae0c a9d28795 /system/lib/libutils.so
I/DEBUG ( 572): 4020ae10 00000001
I/DEBUG ( 572): 4020ae14 ab00c05c /system/lib/
libaudioflinger.so
I/ServiceManager( 569): service 'media.audio_flinger' died
W/MediaPlayer( 627): MediaPlayer server died!
I/ServiceManager( 569): service 'media.player' died
I/ServiceManager( 569): service 'media.camera' died
W/AudioSystem( 627): AudioFlinger server died!
I/ ( 800): ServiceManager: 0xabe0
D/AudioHardwareALSA( 800): mixer initialized.
I/AudioHardwareALSA( 800): Initialized ALSA PLAYBACK device
AndroidPlayback
D/AudioHardwareALSA( 800): Set PLAYBACK PCM format to S16_LE (Signed
16 bit Little Endian)
D/AudioHardwareALSA( 800): Using 2 channels for PLAYBACK.
D/AudioHardwareALSA( 800): Set PLAYBACK sample rate to 44100 HZ
I/AudioHardwareALSA( 800): Initialized ALSA PLAYBACK device
AndroidPlayback_Speaker_normal
D/AudioHardwareALSA( 800): Set PLAYBACK PCM format to S16_LE (Signed
16 bit Little Endian)
D/AudioHardwareALSA( 800): Using 2 channels for PLAYBACK.
D/AudioHardwareALSA( 800): Set PLAYBACK sample rate to 44100 HZ
I/AudioFlinger( 800): AudioFlinger's main thread ready to run.
Here's my asound.conf:
# Android ALSA configuration file for OMAP2430SDP using the TWL4030
audio.
##
## Mixer Devices
##
ctl.AndroidPlayback {
type hw
card TWL4030
}
ctl.AndroidRecord {
type hw
card TWL4030
}
##
## Playback Devices
##
pcm.AndroidPlayback {
type hooks
slave.pcm {
type hw
card TWL4030
device 0 # Must be of type "digital audio playback"
}
hooks.0 {
type ctl_elems
hook_args [
# Enable audio output from the DSP
{
name "Hands-free Playback Switch"
lock false
preserve true
optional false
value true
}
{
name "T2 Master codec Sample Rate"
lock false
preserve true
optional true
value 48000
}
{
name "Playback Source"
lock false
preserve true
optional false
# Values are:
# 0 - 'Stereo Headset'
# 1 - 'Hands-free (Speakers)'
# 2 - 'Mono Handset'
# 3 'USB CarKit'
value 'Hands-free (Speakers)'
}
]
}
}
pcm.AndroidPlayback_Speaker {
type hooks
slave.pcm {
type hw
card TWL4030
device 0 # Must be of type "digital audio playback"
}
hooks.0 {
type ctl_elems
hook_args [
# Enable audio output from the DSP
{
name "Hands-free Playback Switch"
lock false
preserve true
optional false
value true
}
{
name "T2 Master codec Sample Rate"
lock false
preserve true
optional true
value 48000
}
{
name "Playback Source"
lock false
preserve true
optional false
# Values are:
# 0 - 'Stereo Headset'
# 1 - 'Hands-free (Speakers)'
# 2 - 'Mono Handset'
# 3 'USB CarKit'
value 'Hands-free (Speakers)'
}
]
}
}
pcm.AndroidPlayback_Speaker_normal {
type hooks
slave.pcm {
type hw
card TWL4030
device 0 # Must be of type "digital audio playback"
}
hooks.0 {
type ctl_elems
hook_args [
# Enable audio output from the DSP
{
name "Hands-free Playback Switch"
lock false
preserve true
optional false
value true
}
{
name "T2 Master codec Sample Rate"
lock false
preserve true
optional true
value 48000
}
{
name "Playback Source"
lock false
preserve true
optional false
# Values are:
# 0 - 'Stereo Headset'
# 1 - 'Hands-free (Speakers)'
# 2 - 'Mono Handset'
# 3 'USB CarKit'
value 'Hands-free (Speakers)'
}
]
}
}
pcm.AndroidPlayback_Headset {
type hooks
slave.pcm {
type hw
card TWL4030
device 0 # Must be of type "digital audio playback"
}
hooks.0 {
type ctl_elems
hook_args [
# Enable audio output from the DSP
{
name "Hands-free Playback Switch"
value true
}
{
name "T2 Master codec Sample Rate"
value 48000
}
{
name "Playback Source"
# Values are:
# 0 - 'Stereo Headset'
# 1 - 'Hands-free (Speakers)'
# 2 - 'Mono Handset'
# 3 'USB CarKit'
value 'Stereo Headset'
}
]
}
}
pcm.AndroidPlayback_Earpiece {
type hooks
slave.pcm {
type hw
card TWL4030
device 0 # Must be of type "digital audio playback"
}
hooks.0 {
type ctl_elems
hook_args [
# Enable audio output from the DSP
{
name "Hands-free Playback Switch"
value true
}
{
name "T2 Master codec Sample Rate"
value 48000
}
{
name "Playback Source"
# Values are:
# 0 - 'Stereo Headset'
# 1 - 'Hands-free (Speakers)'
# 2 - 'Mono Handset'
# 3 'USB CarKit'
value 'Mono Handset'
}
]
}
}
# No bluetooth available. Send output to the bit bucket.
pcm.AndroidPlayback_Bluetooth {
type null
}
##
## Recording device
##
pcm.AndroidRecord_Microphone {
type hooks
slave.pcm {
type hw
card TWL4030
device 0 # Must be of type "digital audio capture"
}
hooks.0 {
type ctl_elems
hook_args [
{
# TWL4030 values for capture source:
# 0 - 'Headset Mic'
# 1 - 'Main Mic + Sub Mic'
# 2 - 'Aux/FM'
# 3 - 'USB CarKit'
name "Capture Source"
lock false
preserve true
optional false
value 'Main Mic + Sub Mic'
}
{
# Enable capture, range [0..100]
name "Mic Headset Capture Volume"
value [100 100]
}
{
name "Mic Headset Capture Switch"
value true
}
{
# TWL4030 Capture volume, range [0..100]
name "Master Capture Volume"
value [60 60]
}
]
}
}
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