From: lexa@cfotr.com (lexa)
To: linux-arm-kernel@lists.infradead.org
Subject: Debugging missing interrupts
Date: Mon, 04 Mar 2013 14:24:10 +0400 [thread overview]
Message-ID: <1362392650.11465.49.camel@localhost> (raw)
In-Reply-To: <512C118D.4060105@atmel.com>
On Tue, 2013-02-26 at 09:36 +0800, Bo Shen wrote:
> On 2/25/2013 19:02, lexa wrote:
> >>>> Which command do you use for recording? (it will give sample rate,
> >>>> format, and etc)
> >>
> >> any information for this?
> > I tried:
> > arecord -r 8000 -f S16_LE
> > arecord -r 8000 -f U8
> > arecord -r 48000 -f S16_LE
> > arecord -r 48000 -f U8
>
> only these, without "-t wav record.wav" or anything else?
Only this commands, without any additional options. Recorded data
forwarded to my terminal and i don't see anything except wav header.
>
> >> Please enable the kernel debug information, this will give out necessary
> >> register information for debugging. Please also provide it for analysis
> >> your problem.
> >>
> >
> > Which registers should i watch ? I suppose all registers which configure
> > SSC controller, but maybe someone what else ?
>
> May be you misunderstanding. I mean you enable the kernel debug
> information, the driver will automatically print the register setting
> for each step operation.
>
> You can go through the driver, there are many pr_debug which give the
> necessary information.
I enable debugging in ssc driver and tried execute some commands:
# arecord -f dat -t wav record.wav
Recording WAVE 'record.wav' : Signed 16 bit Little Endian, Rate 48000 Hz, Stereo
[ 73.500000] atmel_ssc_startup: SSC_SR=0x12
[ 73.520000] atmel_ssc_hw_params: RCMR=00010721 RFMR=0000008f TCMR=00010702 TF MR=0000008f
[ 73.530000] atmel_ssc_dai: Starting clock
[ 73.540000] atmel_ssc_dai,hw_params: SSC initialized
[ 73.540000] receive enabled SSC_SR=0x0002040c
Aborted by signal Interrupt...
[ 79.650000] atmel_ssc_shutdown: receive disabled SSC_SR=0x0000040c
[ 79.650000] atmel_ssc_dau: Stopping clock signal Interrupt...
# aplay -f dat test.dat
[ 92.040000] atmel_ssc_startup: SSC_SR=0x12
Playing raw data 'test.dat' : Signed 16 bit Little Endian, Rate 48000 Hz, Stereo
[ 92.060000] atmel_ssc_hw_params: RCMR=00010721 RFMR=0000008f TCMR=00010702 TFMR=0000008f
[ 92.070000] atmel_ssc_dai: Starting clock
[ 92.080000] atmel_ssc_dai,hw_params: SSC initialized
[ 92.080000] transmit enabled SSC_SR=0x0001040f
[ 92.210000] atmel_ssc_shutdown: transmit disabled SSC_SR=0x00010403
[ 92.210000] atmel_ssc_dau: Stopping clock
# arecord -r 8000 -f S16_LE -t wav record.wav
[ 139.770000] atmel_ssc_startup: SSC_SR=0x0
Recording WAVE 'record.wav' : Signed 16 bit Little Endian, Rate 8000 Hz, Mono
[ 139.790000] atmel_ssc_hw_params: RCMR=00010421 RFMR=0000008f TCMR=00010402 TFMR=0000008f
[ 139.800000] atmel_ssc_dai: Starting clock
[ 139.800000] atmel_ssc_dai,hw_params: SSC initialized
[ 139.810000] receive enabled SSC_SR=0x000204c0
Aborted by signal Interrupt...
[ 141.260000] atmel_ssc_shutdown: receive disabled SSC_SR=0x00000400
[ 141.270000] atmel_ssc_dau: Stopping clock
# aplay -r 8000 -f S16_LE test.dat
[ 154.710000] atmel_ssc_startup: SSC_SR=0x0
Playing raw data 'test.dat' : Signed 16 bit Little Endian, Rate 8000 Hz, Mono
[ 154.730000] atmel_ssc_hw_params: RCMR=00010421 RFMR=0000008f TCMR=00010402 TFMR=0000008f
[ 154.740000] atmel_ssc_dai: Starting clock
[ 154.750000] atmel_ssc_dai,hw_params: SSC initialized
[ 154.750000] transmit enabled SSC_SR=0x0001040f
Aborted by signal Interrupt...
[ 155.580000] atmel_ssc_shutdown: transmit disabled SSC_SR=0x00000403
[ 155.580000] atmel_ssc_dau: Stopping clock
# arecord -r 8000 -f S16_LE -c 2 -t wav record.wav
[ 176.880000] atmel_ssc_startup: SSC_SR=0x0
Recording WAVE 'record.wav' : Signed 16 bit Little Endian, Rate 8000 Hz, Stereo
[ 176.900000] atmel_ssc_hw_params: RCMR=00010721 RFMR=0000008f TCMR=00010702 TFMR=0000008f
[ 176.900000] atmel_ssc_dai: Starting clock
[ 176.910000] atmel_ssc_dai,hw_params: SSC initialized
[ 176.920000] receive enabled SSC_SR=0x000204c0
Aborted by signal Interrupt...
[ 177.800000] atmel_ssc_shutdown: receive disabled SSC_SR=0x00000400
[ 177.810000] atmel_ssc_dau: Stopping clock
# aplay -r 8000 -f S16_LE -c 2 test.dat
[ 193.380000] atmel_ssc_startup: SSC_SR=0x0
Playing raw data 'test.dat' : Signed 16 bit Little Endian, Rate 8000 Hz, Stereo
[ 193.400000] atmel_ssc_hw_params: RCMR=00010721 RFMR=0000008f TCMR=00010702 TFMR=0000008f
[ 193.410000] atmel_ssc_dai: Starting clock
[ 193.410000] atmel_ssc_dai,hw_params: SSC initialized
[ 193.420000] transmit enabled SSC_SR=0x0001040f
[ 193.920000] atmel_ssc_shutdown: transmit disabled SSC_SR=0x00010403
[ 193.930000] atmel_ssc_dau: Stopping clock
aplay works fine, but arecord writes nothing except wav header.
P.S. Sorry for my slow response.
next prev parent reply other threads:[~2013-03-04 10:24 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-02-25 7:34 Debugging missing interrupts lexa
2013-02-25 8:03 ` Bo Shen
2013-02-25 8:37 ` lexa
2013-02-25 9:21 ` Bo Shen
[not found] ` <1361790127.4640.58.camel@localhost>
[not found] ` <512C118D.4060105@atmel.com>
2013-03-04 10:24 ` lexa [this message]
2013-03-05 8:09 ` Bo Shen
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