- Alsa-devel - mailman.alsa-project.org

Re: [alsa-devel] VGN-P11Z_G (hda-intel ALC262) internal microphone not working
by Daniel Chen 15 Jan '10

15 Jan '10

Hi, Takashi, On Wed, Jan 13, 2010 at 12:28 PM, Christian Stöveken <christian.stoeveken(a)gmail.com> wrote: > sorry to get back to you so late - I tried again 5 minutes ago and it is now > working with the false parameter removed (/etc/modules:9: snd-hda-intel > model=vaio) > > working "model=auto": > http://www.alsa-project.org/db/?f=67f6a692f0ccd70d6893665d36c8b90a51f4a577 > > also with "power_save=10 power_save_controller=N model=auto": > http://www.alsa-project.org/db/?f=618f4d4ae530957b4b6d2b66751871d4073df685 > > I hope this is how you expected it to look like. > Also the headphones now work correctly. Attached is a patch against current sound-2.6 master HEAD that: * adds Christian's SSID to the relevant quirk table, * prefers BIOS autoprobing for existing Sony VAIO models matching 0x104d90xx. The second change was made to ease backing out the change in case of regressions. Best, -Dan

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Re: [alsa-devel] [PATCH 0/5] PCM mmap (temporary) fixes for non-coherent architectures
by Takashi Iwai 15 Jan '10

15 Jan '10

At Fri, 1 Jan 2010 20:31:30 +0100, Andreas Mohr wrote: > > Hi, > > I've tried this patch set (with the typo-corrected part 4) on my ASUS > WL-500gP v2 MIPSEL via a backport to 2.6.31.9, but all I get is a > small blip of the sound I wanted to play, and then the system is fubar > (I believe just the same thing as what happened without having this patch > applied). As I mentioned in the previous followup, if your device is a USB-audio, the patch doesn't help because it's for devices with buffers using dma_alloc_coherent(). For USB-audio, it uses vmalloc for an intermediate buffer. Maybe this should be changed to dma_*() stuff for such architectures. Nevertheless, I don't know whether the crash is related with the audio part... Takashi

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Re: [alsa-devel] hda_intel.c patch requested for Teradici
by Maher Fahmi 15 Jan '10

15 Jan '10

ALSA Team, Sorry to bother you with this again. I haven't yet received confirmation (or rejection) from the moderator, and just wondering if there's anything else I can/should do. Best regards & Happy New Year, Maher. ________________________________ From: Maher Fahmi Sent: Friday, December 04, 2009 1:41 PM To: 'alsa-devel(a)alsa-project.org' Subject: hda_intel.c patch requested for Teradici Alsa Team, Enclosed is a patch to the hda_intel.c file from the alsa-driver-1.0.21 package. I tried to submit this using git, but ran into some problems that exceed my limited understanding of Linux. I hope this will suffice for you. Summary: Fix to a HW issue in which the 64OK register bit of the GCAP register is incorrectly asserted. Signed-off-by: Maher Fahmi mfahmi(a)teradici.com Thanks very much, Maher.

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[alsa-devel] snd_pcm_avail_update returns 0
by Singaravelan Nallasellan 14 Jan '10

14 Jan '10

Hi, Our audio driver uses the indirect PCM data transfer mechanism to transfer the buffer pointers and the size of the buffer to the Audio engine which DMAs the PCM data to the sound card. The driver uses the .ack callback to receive the buffer pointer and the size. It also sends it to the audio engine. We are facing a problem when we play long wav file using our driver. The application has written the PCM data and the ring buffer is full. snd_pcm_avail_update returns 0 sporadically. But the .ack callback was not called. The playback is stuck. It is not progressing. I have tried with pulseaudio (0.9.15) and with my own player. Both gives the same result. I would appreciate if somebody could provide some pointer to identify the cause of this issue. Let me know if anybody needs more info. Thanks Sing

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Re: [alsa-devel] snd-hdsp driver error?
by Raymond Yau 14 Jan '10

14 Jan '10

AFAIK , alsa-lib use the driver name to find the name of corresponding conf file from /usr/share/alsa/cards/aliases.conf In your case , H-DSP.conf does not exist and there is no aliases in /usr/share/alsa/cards/aliases.conf You have to ask Takashi or Jaroslav to fix this issue for your card open("/usr/share/alsa/cards/aliases.conf", O_RDONLY) = 3 access("/usr/share/alsa/cards/H-DSP.conf", R_OK) = -1 ENOENT (No such file or directory) open("/dev/snd/controlC1", O_RDONLY) = 3 close(3) = 0 write(2, "ALSA lib confmisc.c:1286:(snd_fu"..., 42ALSA lib confmisc.c:1286:(snd_func_refer) ) = 42 write(2, "Unable to find definition 'cards"..., 58Unable to find definition 'cards.H-DSP.pcm.front.0:CARD=0') = 58 write(2, "\n", 1 2009/11/7 Lars Zobbe <fedesensfar(a)gmail.com> > It is a clean install. > lars@lars-desktop:~$ lsb_release -a && uname -a > No LSB modules are available. > Distributor ID: Ubuntu > Description: Ubuntu 9.10 > Release: 9.10 > Codename: karmic > Linux lars-desktop 2.6.31-14-generic #48-Ubuntu SMP Fri Oct 16 14:05:01 UTC > 2009 x86_64 GNU/Linux > > It didn't work with pulseaudio in any previos version (of ubuntu or any > other distro I've tried) either. > And the standard answer from people "out there" is "forget about pulse it > doesn't work with the HDSP" f.x. this guy > http://ubuntuforums.org/showpost.php?p=7578331&postcount=10 > And that's why I contacted pulseaudio developers first when I found out the > it was because snd_hdsp didn't load with the preferred udev but only with > module-detect (se my first post). They said that I should inform Alsa > developers as there seems to be a problem with the alsa driver. > > I've attached the strace output. > > Thanks. > Lars. > > > > > On Fri, Nov 6, 2009 at 2:53 AM, Raymond Yau <superquad.vortex2(a)gmail.com>wrote: > >> Is it a clean install of Ubuntu 9.10 or upgrade from previous Ubuntu ? >> >> you may need to find out why aplay -v -Dfront 32bit.wav fail ? >> >> strace aplay -v -Dfront 32bit.wav >> >> >> >> >> >> !!Linux Distribution >> >> !!------------------ >> >> Ubuntu 9.10 \n \l DISTRIB_ID=Ubuntu DISTRIB_DESCRIPTION="Ubuntu 9.10" >> >> !!Sound Servers on this system >> !!---------------------------- >> >> Pulseaudio: >> Installed - Yes (/usr/bin/pulseaudio) >> >> >> Running - Yes >> >> ESound Daemon: >> Installed - Yes (/usr/bin/esd) >> Running - No >> >> Jack: >> Installed - Yes (/usr/bin/jackd) >> Running - No >> >> >> !!ALSA configuration files >> >> >> !!------------------------ >> >> !!User specific config file (~/.asoundrc) >> >> pcm.!default { >> type plug >> slave { pcm "jack" } >> } >> >> pcm.jack { >> type jack >> playback_ports { >> >> 0 alsa_pcm:playback_1 >> >> 1 alsa_pcm:playback_2 >> } >> capture_ports { >> 0 alsa_pcm:capture_1 >> 1 alsa_pcm:capture_2 >> } >> } >> >> ctl.mixer0 { >> type hw >> card 0 >> } >> >> >> lars@lars-desktop:~$ aplay -v -Dfront:0 32bit.wav >> ALSA lib confmisc.c:1286:(snd_func_refer) Unable to find definition >> 'cards.H-DSP.pcm.front.0:CARD=0' >> ALSA lib conf.c:3513:(_snd_config_evaluate) function snd_func_refer >> returned error: No such file or directory >> ALSA lib conf.c:3985:(snd_config_expand) Evaluate error: No such file or >> directory >> ALSA lib pcm.c:2211:(snd_pcm_open_noupdate) Unknown PCM front:0 >> aplay: main:608: audio open error: No such file or directory >> >> >> Did PA developer tell you not to load oss module ? >> >> >> >> D: alsa-util.c: Checking for subset analog-mono (hw:%f) >> D: alsa-util.c: Trying hw:0 with SND_PCM_NO_AUTO_FORMAT ... >> D: alsa-util.c: Managed to open hw:0 >> D: alsa-util.c: snd_pcm_hw_params_set_access() failed: Invalid argument >> D: alsa-util.c: Trying hw:0 without SND_PCM_NO_AUTO_FORMAT ... >> D: alsa-util.c: Managed to open hw:0 >> D: alsa-util.c: snd_pcm_hw_params_set_access() failed: Invalid argument >> D: alsa-util.c: Trying plug:hw:0 with SND_PCM_NO_AUTO_FORMAT ... >> D: alsa-util.c: Managed to open plug:hw:0 >> D: alsa-util.c: snd_pcm_hw_params_set_format(Signed 16 bit Little Endian) >> failed: Invalid argument >> D: alsa-util.c: snd_pcm_hw_params_set_format(Signed 16 bit Big Endian) >> failed: Invalid argument >> D: alsa-util.c: snd_pcm_hw_params_set_format(Float 32 bit Little Endian) >> failed: Invalid argument >> D: alsa-util.c: snd_pcm_hw_params_set_format(Float 32 bit Big Endian) >> failed: Invalid argument >> D: alsa-util.c: snd_pcm_hw_params_set_channels(1) failed: Invalid argument >> D: alsa-util.c: Trying plug:hw:0 without SND_PCM_NO_AUTO_FORMAT ... >> D: alsa-util.c: Managed to open plug:hw:0 >> D: alsa-util.c: snd_pcm_hw_params_set_channels(1) failed: Invalid argument >> I: alsa-util.c: Failed to set hardware parameters on plug:hw:0: Invalid >> argument >> D: alsa-util.c: Trying hw:0 as last resort... >> D: alsa-util.c: Trying hw:0 with SND_PCM_NO_AUTO_FORMAT ... >> D: alsa-util.c: Managed to open hw:0 >> D: alsa-util.c: snd_pcm_hw_params_set_access() failed: Invalid argument >> D: alsa-util.c: Trying hw:0 without SND_PCM_NO_AUTO_FORMAT ... >> D: alsa-util.c: Managed to open hw:0 >> D: alsa-util.c: snd_pcm_hw_params_set_access() failed: Invalid argument >> D: alsa-util.c: Trying plug:hw:0 with SND_PCM_NO_AUTO_FORMAT ... >> D: alsa-util.c: Managed to open plug:hw:0 >> D: alsa-util.c: snd_pcm_hw_params_set_format(Signed 16 bit Little Endian) >> failed: Invalid argument >> D: alsa-util.c: snd_pcm_hw_params_set_format(Signed 16 bit Big Endian) >> failed: Invalid argument >> D: alsa-util.c: snd_pcm_hw_params_set_format(Float 32 bit Little Endian) >> failed: Invalid argument >> D: alsa-util.c: snd_pcm_hw_params_set_format(Float 32 bit Big Endian) >> failed: Invalid argument >> D: alsa-util.c: Maximum hw buffer size is 371 ms >> I: (alsa-lib)pcm_hw.c: SNDRV_PCM_IOCTL_HW_PARAMS failed >> I: (alsa-lib)pcm_hw.c: SNDRV_PCM_IOCTL_HW_PARAMS failed >> I: (alsa-lib)pcm_hw.c: SNDRV_PCM_IOCTL_HW_PARAMS failed >> I: (alsa-lib)pcm_hw.c: SNDRV_PCM_IOCTL_HW_PARAMS failed >> D: alsa-util.c: Set neither period nor buffer size. >> I: (alsa-lib)pcm_hw.c: SNDRV_PCM_IOCTL_HW_PARAMS failed >> I: alsa-util.c: snd_pcm_hw_params failed: Device or resource busy >> D: alsa-util.c: Trying plug:hw:0 without SND_PCM_NO_AUTO_FORMAT ... >> D: alsa-util.c: Managed to open plug:hw:0 >> D: alsa-util.c: Maximum hw buffer size is 371 ms >> I: (alsa-lib)pcm_hw.c: SNDRV_PCM_IOCTL_HW_PARAMS failed >> I: (alsa-lib)pcm_hw.c: SNDRV_PCM_IOCTL_HW_PARAMS failed >> I: (alsa-lib)pcm_hw.c: SNDRV_PCM_IOCTL_HW_PARAMS failed >> I: (alsa-lib)pcm_hw.c: SNDRV_PCM_IOCTL_HW_PARAMS failed >> D: alsa-util.c: Set neither period nor buffer size. >> I: (alsa-lib)pcm_hw.c: SNDRV_PCM_IOCTL_HW_PARAMS failed >> I: alsa-util.c: snd_pcm_hw_params failed: Device or resource busy >> I: alsa-util.c: Failed to set hardware parameters on plug:hw:0: Device or >> resource busy >> E: module.c: Failed to load module "module-alsa-source" (argument: >> "device_id=0"): initialization failed. >> W: module.c: module-oss is deprecated: Please use module-alsa-card instead >> of module-oss! >> D: oss-util.c: capabilities: MMAP REALTIME TRIGGER >> I: module-oss.c: Device opened in O_RDONLY mode. >> D: oss-util.c: Asking for 4 fragments of size 512 (requested 880) >> E: oss-util.c: SNDCTL_DSP_SETFMT: Device or resource busy >> E: module.c: Failed to load module "module-oss" (argument: >> "device=/dev/dsp"): initialization failed. >> W: module-detect.c: failed to detect any sound hardware. >> >> >> 2009/11/6 Lars Zobbe <fedesensfar(a)gmail.com> >> >> Sorry. I didn't realise that it was a bash script. Here is the link to my >>> alsa-info >>> >>> http://www.alsa-project.org/db/?f=d3728557be71067e2ed0920747118ae7efff2829 >>> >>> Thanks again. >>> Lars. >>> >>> >>> On Thu, Nov 5, 2009 at 5:29 AM, Raymond Yau <superquad.vortex2(a)gmail.com >>> > wrote: >>> >>>> Please provide the full pulseaudio log and output of alsa-info.sh >>>> >>>> http://www.pulseaudio.org/wiki/Troubleshooting >>>> >>>> pulseaudio -k; pulseaudio -vvv >>>> >>>> and >>>> >>>> aplay -v -Dfront:0 32bit.wav >>>> >>>> aplay -v -M -Dfront:0 32bit.wav >>>> >>>> aplay -v -Dplughw:0 any.wav >>>> >>>> aplay -v -M -Dplughw:0 any.wav >>>> >>>> >>>> 2009/11/4 Lars Zobbe <fedesensfar(a)gmail.com> >>>> >>>> > Hi Raymond. >>>> > >>>> > I so sorry Raymond. But I'm not sure what to do with this info. Is >>>> there >>>> > something more I have to tell you? Is there anything I can do to make >>>> > pulseaudio able to detect via udev? Can I copy-paste that bit of code >>>> you >>>> > sent me somewhere? >>>> > Please tell me if there's more you need to know. >>>> > Greetings. >>>> > Lars. >>>> > >>>> > >>>> > >>>> > >>>> > On Tue, Nov 3, 2009 at 7:48 AM, Raymond Yau < >>>> superquad.vortex2(a)gmail.com>wrote: >>>> > >>>> >> I guess route plugin used by RME96*.conf does not support mmap when >>>> there >>>> >> is >>>> >> channel conversion since minimum channels supported by hdsp is 14 >>>> >> >>>> >> >>>> >> static struct snd_pcm_hardware snd_hdsp_playback_subinfo = >>>> >> { >>>> >> .info = (SNDRV_PCM_INFO_MMAP | >>>> >> SNDRV_PCM_INFO_MMAP_VALID | >>>> >> SNDRV_PCM_INFO_NONINTERLEAVED | >>>> >> SNDRV_PCM_INFO_SYNC_START | >>>> >> SNDRV_PCM_INFO_DOUBLE), >>>> >> #ifdef SNDRV_BIG_ENDIAN >>>> >> .formats = SNDRV_PCM_FMTBIT_S32_BE, >>>> >> #else >>>> >> .formats = SNDRV_PCM_FMTBIT_S32_LE, >>>> >> #endif >>>> >> .rates = (SNDRV_PCM_RATE_32000 | >>>> >> SNDRV_PCM_RATE_44100 | >>>> >> SNDRV_PCM_RATE_48000 | >>>> >> SNDRV_PCM_RATE_64000 | >>>> >> SNDRV_PCM_RATE_88200 | >>>> >> SNDRV_PCM_RATE_96000), >>>> >> .rate_min = 32000, >>>> >> .rate_max = 96000, >>>> >> .channels_min = 14, >>>> >> .channels_max = HDSP_MAX_CHANNELS, >>>> >> .buffer_bytes_max = HDSP_CHANNEL_BUFFER_BYTES * HDSP_MAX_CHANNELS, >>>> >> .period_bytes_min = (64 * 4) * 10, >>>> >> .period_bytes_max = (8192 * 4) * HDSP_MAX_CHANNELS, >>>> >> .periods_min = 2, >>>> >> .periods_max = 2, >>>> >> .fifo_size = 0 >>>> >> }; >>>> >> >>>> >> 2009/11/2 Lars Zobbe <fedesensfar(a)gmail.com> >>>> >> >>>> >> > Hi. >>>> >> > >>>> >> > Talking to one of the pulseaudio developers (*Colin Guthrie*) about >>>> a >>>> >> > problem with pulseaudio loading modules and my sound card (RME HDSP >>>> >> 9632), >>>> >> > I >>>> >> > was adviced to inform you about the problem. >>>> >> > >>>> >> > I'm on ubuntu 9.10, 64bit, kernel 2.6.31 with an amd64 x2 3800+ >>>> >> processor. >>>> >> > >>>> >> > >>>> >> > Symptoms are: >>>> >> > Can only make pulseaudio load modules with the deprecated >>>> load-module >>>> >> > module-detect command, module-udev-detect doesn't detect anything >>>> (no >>>> >> sound >>>> >> > - only null sink output in padevchooser). >>>> >> > I get terrible stuttering. >>>> >> > I can remove pulseaudio and make things work, more or less. >>>> However, >>>> >> that >>>> >> > leaves me without software mixing and apps fighting for the rights >>>> to >>>> >> make >>>> >> > sound. And more inconveniences (fx. no volume-control). >>>> >> > I can play sound from audacity without stuttering by choosing the >>>> >> cardname >>>> >> > directly in output HDSP, not ALSA, not pulseaudio. >>>> >> > >>>> >> > >>>> >> > When trying to run alsa-info.sh I get a lot of "not found" errors. >>>> So >>>> >> > you'll >>>> >> > get some manual info (they might have moved som files around in >>>> ubuntu >>>> >> > 9.10). >>>> >> > >>>> >> > This is part of my syslog during a boot. (I did the formatting to >>>> bold). >>>> >> > >>>> >> > Nov 2 10:57:32 lars-desktop pulseaudio[1524]: module.c: >>>> module-detect >>>> >> is >>>> >> > deprecated: Please use module-udev-detect instead of module-detect! >>>> >> > Nov 2 10:57:37 lars-desktop pulseaudio[1524]: ratelimit.c: 27 >>>> events >>>> >> > suppressed >>>> >> > Nov 2 10:57:39 lars-desktop pulseaudio[1612]: module.c: >>>> module-detect >>>> >> is >>>> >> > deprecated: Please use module-udev-detect instead of module-detect! >>>> >> > Nov 2 10:57:44 lars-desktop pulseaudio[1612]: ratelimit.c: 23 >>>> events >>>> >> > suppressed >>>> >> > Nov 2 10:57:44 lars-desktop pulseaudio[1612]: alsa-sink.c: ALSA >>>> woke us >>>> >> up >>>> >> > to write new data to the device, but there was actually nothing to >>>> >> write! >>>> >> > Nov 2 10:57:44 lars-desktop pulseaudio[1612]: alsa-sink.c: *Most >>>> likely >>>> >> > this is a bug in the ALSA driver 'snd_hdsp'. Please report this >>>> issue to >>>> >> > the >>>> >> > ALSA developers.* >>>> >> > Nov 2 10:57:44 lars-desktop pulseaudio[1612]: alsa-sink.c: We were >>>> >> woken >>>> >> > up >>>> >> > with POLLOUT set -- however a subsequent snd_pcm_avail() returned 0 >>>> or >>>> >> > another value < min_avail. >>>> >> > Nov 2 10:57:49 lars-desktop pulseaudio[1612]: ratelimit.c: 99 >>>> events >>>> >> > suppressed >>>> >> > >>>> >> > Later if I try to play audio I get terrible skipping or stuttering >>>> and >>>> >> my >>>> >> > syslog (in less than a minute) writes: >>>> >> > Nov 2 11:55:16 lars-desktop pulseaudio[1612]: ratelimit.c: 16 >>>> events >>>> >> > suppressed >>>> >> > Nov 2 11:55:21 lars-desktop pulseaudio[1612]: ratelimit.c: 34 >>>> events >>>> >> > suppressed >>>> >> > Nov 2 11:55:26 lars-desktop pulseaudio[1612]: ratelimit.c: 70 >>>> events >>>> >> > suppressed >>>> >> > Nov 2 11:55:31 lars-desktop pulseaudio[1612]: ratelimit.c: 29 >>>> events >>>> >> > suppressed >>>> >> > Nov 2 11:55:36 lars-desktop pulseaudio[1612]: ratelimit.c: 43 >>>> events >>>> >> > suppressed >>>> >> > Nov 2 11:55:41 lars-desktop pulseaudio[1612]: ratelimit.c: 161 >>>> events >>>> >> > suppressed >>>> >> > Nov 2 11:55:46 lars-desktop pulseaudio[1612]: ratelimit.c: 28 >>>> events >>>> >> > suppressed >>>> >> > Nov 2 11:55:51 lars-desktop pulseaudio[1612]: ratelimit.c: 18 >>>> events >>>> >> > suppressed >>>> >> > Nov 2 11:55:56 lars-desktop pulseaudio[1612]: ratelimit.c: 16 >>>> events >>>> >> > suppressed >>>> >> > >>>> >> > Here's the relevant part (concerning my sound card) of lspci -vvv >>>> >> > >>>> >> > 02:09.0 Multimedia audio controller: Xilinx Corporation RME >>>> Hammerfall >>>> >> DSP >>>> >> > (rev 9a) >>>> >> > Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- >>>> ParErr- >>>> >> > Stepping- SERR- FastB2B- DisINTx- >>>> >> > Status: Cap- 66MHz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- >>>> >> > <TAbort- <MAbort- >SERR- <PERR- INTx- >>>> >> > Latency: 255 >>>> >> > Interrupt: pin A routed to IRQ 19 >>>> >> > Region 0: Memory at fdff0000 (32-bit, non-prefetchable) >>>> [size=64K] >>>> >> > Kernel driver in use: RME Hammerfall DSP >>>> >> > Kernel modules: snd-hdsp >>>> >> > >>>> >> > And: >>>> >> > lars@lars-desktop:~$ aplay -l >>>> >> > **** List of PLAYBACK Hardware Devices **** >>>> >> > card 0: DSP [Hammerfall DSP], device 0: RME Hammerfall HDSP 9632 >>>> [RME >>>> >> > Hammerfall HDSP 9632] >>>> >> > Subdevices: 1/1 >>>> >> > Subdevice #0: subdevice #0 >>>> >> > >>>> >> > >>>> >> > lars@lars-desktop:~$ cat /proc/asound/version >>>> >> > Advanced Linux Sound Architecture Driver Version 1.0.21. >>>> >> > Compiled on Oct 15 2009 for kernel 2.6.31-14-generic (SMP). >>>> >> > >>>> >> > lars@lars-desktop:~$ cat /proc/asound/cards >>>> >> > 0 [DSP ]: H-DSP - Hammerfall DSP >>>> >> > RME Hammerfall HDSP 9632 at 0xfdff0000, irq 19 >>>> >> > >>>> >> > >>>> >> > lars@lars-desktop:~$ cat /proc/asound/modules >>>> >> > 0 snd_hdsp >>>> >> > >>>> >> > I don't have .asound.conf files. >>>> >> > >>>> >> > lars@lars-desktop:~$ hdsploader >>>> >> > hdsploader - firmware loader for RME Hammerfall DSP cards >>>> >> > Looking for HDSP + Multiface or Digiface cards : >>>> >> > Card 0 : RME Hammerfall HDSP 9632 at 0xfdff0000, irq 19 >>>> >> > >>>> >> > And of course. My computer makes no sound if I don't load the >>>> hdspmixer >>>> >> at >>>> >> > startup. I guess that's just normal for this card though. >>>> >> > >>>> >> > Please let me know, if you need more info. I really hope you can >>>> help >>>> >> out >>>> >> > here. And that this might help you to. >>>> >> > >>>> >> > Thanks for the great work you do. Greetings. >>>> >> > Lars Zobbe. >>>> >> > _______________________________________________ >>>> >> > Alsa-devel mailing list >>>> >> > Alsa-devel(a)alsa-project.org >>>> >> > http://mailman.alsa-project.org/mailman/listinfo/alsa-devel >>>> >> > >>>> >> _______________________________________________ >>>> >> Alsa-devel mailing list >>>> >> Alsa-devel(a)alsa-project.org >>>> >> http://mailman.alsa-project.org/mailman/listinfo/alsa-devel >>>> >> >>>> > >>>> > >>>> _______________________________________________ >>>> Alsa-devel mailing list >>>> Alsa-devel(a)alsa-project.org >>>> http://mailman.alsa-project.org/mailman/listinfo/alsa-devel >>>> >>> >>> >> >

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[alsa-devel] [PATCH] ASoC: TWL4030: Fix typo in comment in header file
by Thomas Weber 14 Jan '10

14 Jan '10

Signed-off-by: Thomas Weber <weber(a)corscience.de> --- sound/soc/codecs/twl4030.h | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-) diff --git a/sound/soc/codecs/twl4030.h b/sound/soc/codecs/twl4030.h index dd6396e..f206d24 100644 --- a/sound/soc/codecs/twl4030.h +++ b/sound/soc/codecs/twl4030.h @@ -25,7 +25,7 @@ /* Register descriptions are here */ #include <linux/mfd/twl4030-codec.h> -/* Sgadow register used by the audio driver */ +/* Shadow register used by the audio driver */ #define TWL4030_REG_SW_SHADOW 0x4A #define TWL4030_CACHEREGNUM (TWL4030_REG_SW_SHADOW + 1) -- 1.6.4.4

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Re: [alsa-devel] ALSA DMIX support without MMAP ?
by ANISH KUMAR 14 Jan '10

14 Jan '10

>mmap is supported by the Samsung drivers. Thanks for this information which i overlooked. >This looks like the dmix data rates are getting out of sync with what >the hardware is doing. Enabling CONFIG_SND_PCM_XRUN_DEBUG will produce >more diagnostic information from the driver side I got the problem and after doing the changes DMIX plugin is working very fine. As you know XRUN was happening and this happening in snd_pcm_update_hw_ptr_post function. This happened because stop_threshold is increased suddenly(Is it done by dmix? If yes then why ?) ?????? In normal condtions this would have been fine but in my code i was multiplying it by some amount causing it to wrap around(stop_threshold=0 );Causing XRUN.So i just removed this multiplying factor. One more Rate conversion query: ./alsa_aplay -v -D"plug:'dmix:RATE=44100'" bond.wav Playing WAVE 'bond.wav' : Unsigned 8 bit, Rate 11025 Hz, Mono Plug PCM: Rate conversion PCM (44100, sformat=U8) As you can see bond.wav is sampled at 11025k but when i am playing with Plug PCM there is some noise in the song why????Is rate conversion algoritm not able to resample it properly? If i play with ./alsa_aplay -v -D"plug:'dmix:RATE=11025'" bond.wav then no noise.Probably because no resampling happening? Mark Brown Heartfelt Thanks for your time.

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Re: [alsa-devel] ALSA DMIX support without MMAP ?
by ANISH KUMAR 14 Jan '10

14 Jan '10

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[alsa-devel] Linux kernel 2.6.32.3 bug report
by d binderman 14 Jan '10

14 Jan '10

Hello there, I just ran the sourceforge tool cppcheck over the source code of the Linux kernel 2.6.32.3 It said [./sound/soc/s3c24xx/s3c24xx-pcm.c:128]: (error) Possible null pointer dereference: substream - otherwise it is redundant to check if substream is null at line 130 I checked the source code and I agree with the compiler. Suggest code rework. Regards David Binderman _________________________________________________________________ Do you have a story that started on Hotmail? Tell us now http://clk.atdmt.com/UKM/go/195013117/direct/01/

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[alsa-devel] capturing data from the microphone
by Riccardo Magliocchetti 14 Jan '10

14 Jan '10

[the same message is waiting in moderator queue, sorry if you receive it two times] Hello, i'm trying to capture audio data from the microphone, but i'm not able to read any frames. The frames are always 0 and delay is fixed to 2730. I've tried calling snd_pcm_avail_delay, snd_pcm_avail_update but does not make a difference. The soundcard is driven by snd_hda_intel. The code is more or less the same as Paul Davis' tutorial on using the alsa api. This is the code for init and the loop that tries to read the data: #define MIC_BUFSIZE 4096 static gpointer snd_pcm_read(gpointer data) { int error; snd_pcm_sframes_t frames = MIC_BUFSIZE; while (TRUE) { if ((error = snd_pcm_wait (pcm_handle, 1000)) < 0) { g_printerr("Failed to poll: %s\n", snd_strerror(error)); continue; } if ((error = snd_pcm_avail(pcm_handle)) < 0) { if (error == -EPIPE) { g_printerr("xrun! %s\n", snd_strerror(error)); continue; //return GINT_TO_POINTER(FALSE); } else { g_printerr("alsa_pcm_avail_update error %s\n", snd_strerror(error)); continue; //return GINT_TO_POINTER(FALSE); } } frames = error; if (frames == 0) continue; frames = frames > MIC_BUFSIZE ? MIC_BUFSIZE : frames; g_printerr ("frames: %ld\n", frames); g_static_mutex_lock(&mutex); error = snd_pcm_readi(pcm_handle, Mic_Buffer[Mic_WriteBuf], frames); g_static_mutex_unlock(&mutex); if (error < 0) error = snd_pcm_recover(pcm_handle, error, 0); if (error < 0) { LOG("snd_pcm_readi FAIL!: %s\n", snd_strerror(error)); } } return GINT_TO_POINTER(TRUE); } BOOL Mic_Init() { snd_pcm_hw_params_t *hwparams; snd_pcm_sw_params_t *swparams; int err; if (Mic_Inited) return TRUE; // Open the default sound card in capture if ((err = snd_pcm_open(&pcm_handle, "default", SND_PCM_STREAM_CAPTURE, /*SND_PCM_NONBLOCK*/ 0)) < 0) { g_printerr("Failed to open device: %s\n", snd_strerror(err)); return FALSE; } // Allocate the snd_pcm_hw_params_t structure and fill it. snd_pcm_hw_params_alloca(&hwparams); if ((err = snd_pcm_hw_params_any(pcm_handle, hwparams)) < 0) { g_printerr("Failed to setup hw parameters: %s\n", snd_strerror(err)); return FALSE; } //Set the access if ((err = snd_pcm_hw_params_set_access(pcm_handle, hwparams, SND_PCM_ACCESS_RW_INTERLEAVED)) < 0) { g_printerr("Failed to set access: %s\n", snd_strerror(err)); return FALSE; } //dir 0 == exacte (Rate = 16K exacte) if ((err = snd_pcm_hw_params_set_rate(pcm_handle, hwparams, 16000, 0)) < 0) { g_printerr("Failed to set rate: %s\n", snd_strerror(err)); return FALSE; } /* Set sample format */ if ((err = snd_pcm_hw_params_set_format(pcm_handle, hwparams, SND_PCM_FORMAT_S8)) < 0) { g_printerr("Failed to set format: %s\n", snd_strerror(err)); return FALSE; } // Set one channel (mono) if ((err = snd_pcm_hw_params_set_channels(pcm_handle, hwparams, 1)) < 0) { g_printerr("Failed to set channels: %s\n", snd_strerror(err)); return FALSE; } //Set the params if ((err = snd_pcm_hw_params(pcm_handle, hwparams)) < 0) { g_printerr("Failed to set hw parameters: %s\n", snd_strerror(err)); return FALSE; } snd_pcm_sw_params_alloca(&swparams); if ((err = snd_pcm_sw_params_current (pcm_handle, swparams)) < 0) { g_printerr("Failed to set current sw parameters: %s\n", snd_strerror(err)); return FALSE; } if ((err = snd_pcm_sw_params_set_avail_min (pcm_handle, swparams, MIC_BUFSIZE)) < 0) { g_printerr("Failed to set minimum available count: %s\n", snd_strerror(err)); return FALSE; } if ((err = snd_pcm_sw_params_set_start_threshold (pcm_handle, swparams, 0U)) < 0) { g_printerr("Failed to set start mode: %s\n", snd_strerror(err)); return FALSE; } if ((err = snd_pcm_sw_params (pcm_handle, swparams)) < 0) { g_printerr("Failed to set sw parameters: %s\n", snd_strerror(err)); return FALSE; } if ((err = snd_pcm_prepare (pcm_handle)) < 0) { g_printerr("Failed to prepare audio interface to use: %s\n", snd_strerror(err)); return FALSE; } Mic_Inited = TRUE; Mic_Reset(); mic_reader = g_thread_create(snd_pcm_read, NULL, TRUE, NULL); return TRUE; } thanks, Riccardo

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